[docs] bypass proxy for sitemap and .md paths

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The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.

[matchai]

No description provided.

[changeset-bot]

⚠️ No Changeset found

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[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.

[matchai]

No description provided.

[changeset-bot]

⚠️ No Changeset found

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[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.

[matchai]

No description provided.

[changeset-bot]

⚠️ No Changeset found

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[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.

[matchai]

No description provided.

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⚠️ No Changeset found

Latest commit: 194e0c3

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[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.

[matchai]

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[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.

[matchai]

No description provided.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 194e0c3

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[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.

[matchai]

No description provided.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 194e0c3

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[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
example-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-docs	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am
workflow-nest	Ready	Preview, Comment, Open in v0	Jan 28, 2026 7:15am

[github-actions]

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.031s (+5.1% 🔺)	1.007s (~)	0.976s	10	1.00x
💻 Local	Express	0.043s (+2.1%)	1.007s (~)	0.964s	10	1.42x
💻 Local	Next.js (Turbopack)	0.049s (+18.2% 🔺)	1.020s (~)	0.971s	10	1.59x
🐘 Postgres	Nitro	0.196s (-25.2% 🟢)	1.015s (~)	0.820s	10	6.37x
🐘 Postgres	Express	0.218s (-27.2% 🟢)	1.016s (~)	0.799s	10	7.09x
🐘 Postgres	Next.js (Turbopack)	0.244s (-38.0% 🟢)	1.023s (~)	0.779s	10	7.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.656s (+4.6%)	1.610s (+3.5%)	0.955s	10	1.00x
▲ Vercel	Express	0.668s (+15.6% 🔺)	1.616s (+10.7% 🔺)	0.948s	10	1.02x
▲ Vercel	Next.js (Turbopack)	0.734s (-3.5%)	1.700s (+10.8% 🔺)	0.967s	10	1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.080s (~)	2.006s (~)	0.926s	10	1.00x
💻 Local	Next.js (Turbopack)	1.093s (-0.9%)	2.014s (~)	0.921s	10	1.01x
💻 Local	Express	1.115s (~)	2.008s (~)	0.894s	10	1.03x
🐘 Postgres	Next.js (Turbopack)	1.730s (-22.9% 🟢)	2.018s (-33.2% 🟢)	0.288s	10	1.60x
🐘 Postgres	Express	2.296s (+7.2% 🔺)	3.017s (~)	0.721s	10	2.13x
🐘 Postgres	Nitro	2.373s (+12.3% 🔺)	3.016s (~)	0.643s	10	2.20x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.771s (+2.2%)	3.662s (+1.7%)	0.891s	10	1.00x
▲ Vercel	Express	2.827s (-12.5% 🟢)	3.709s (-7.2% 🟢)	0.882s	10	1.02x
▲ Vercel	Next.js (Turbopack)	2.870s (+3.2%)	3.623s (+2.0%)	0.753s	10	1.04x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.557s (~)	11.015s (~)	0.458s	5	1.00x
💻 Local	Next.js (Turbopack)	10.740s (~)	11.020s (~)	0.279s	5	1.02x
💻 Local	Express	10.826s (~)	11.014s (~)	0.188s	5	1.03x
🐘 Postgres	Next.js (Turbopack)	15.370s (+0.7%)	16.035s (~)	0.665s	5	1.46x
🐘 Postgres	Nitro	20.320s (-0.9%)	21.040s (~)	0.719s	5	1.92x
🐘 Postgres	Express	20.427s (~)	21.035s (~)	0.608s	5	1.93x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.384s (+1.4%)	23.539s (+3.3%)	1.155s	5	1.00x
▲ Vercel	Nitro	23.100s (~)	23.639s (-0.6%)	0.539s	5	1.03x
▲ Vercel	Next.js (Turbopack)	23.210s (+4.3%)	23.992s (+5.0% 🔺)	0.782s	5	1.04x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.361s (~)	2.005s (~)	0.644s	15	1.00x
💻 Local	Express	1.388s (-1.6%)	2.007s (~)	0.618s	15	1.02x
💻 Local	Next.js (Turbopack)	1.406s (+0.9%)	2.012s (~)	0.606s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.869s (+6.0% 🔺)	2.326s (+15.5% 🔺)	0.456s	14	1.37x
🐘 Postgres	Express	2.261s (+4.2%)	3.018s (~)	0.756s	10	1.66x
🐘 Postgres	Nitro	2.516s (+12.6% 🔺)	3.014s (~)	0.498s	10	1.85x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.949s (-3.7%)	3.775s (-7.6% 🟢)	0.826s	8	1.00x
▲ Vercel	Express	3.204s (+12.2% 🔺)	3.990s (+8.8% 🔺)	0.786s	8	1.09x
▲ Vercel	Next.js (Turbopack)	3.358s (+22.7% 🔺)	4.088s (+13.7% 🔺)	0.730s	8	1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.216s (-1.3%)	3.200s (-0.6%)	0.984s	10	1.00x
💻 Local	Express	2.465s (-1.7%)	3.033s (~)	0.568s	10	1.11x
💻 Local	Next.js (Turbopack)	2.465s (~)	3.135s (+2.9%)	0.670s	10	1.11x
🐘 Postgres	Nitro	7.279s (~)	7.778s (-3.6%)	0.499s	4	3.28x
🐘 Postgres	Express	7.934s (+6.1% 🔺)	8.833s (+9.6% 🔺)	0.898s	4	3.58x
🐘 Postgres	Next.js (Turbopack)	11.957s (~)	12.392s (~)	0.435s	3	5.40x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.275s (-19.2% 🟢)	4.023s (-14.9% 🟢)	0.748s	8	1.00x
▲ Vercel	Express	3.346s (-39.0% 🟢)	4.186s (-31.7% 🟢)	0.840s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.474s (+2.3%)	4.287s (-29.0% 🟢)	0.813s	8	1.06x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.371s (-1.0%)	2.006s (~)	0.635s	15	1.00x
💻 Local	Next.js (Turbopack)	1.402s (~)	2.012s (~)	0.609s	15	1.02x
💻 Local	Express	1.419s (-1.2%)	2.006s (~)	0.587s	15	1.04x
🐘 Postgres	Next.js (Turbopack)	1.634s (-20.8% 🟢)	2.080s (-17.2% 🟢)	0.446s	15	1.19x
🐘 Postgres	Nitro	2.006s (-4.1%)	2.501s (+4.4%)	0.495s	13	1.46x
🐘 Postgres	Express	2.192s (+3.2%)	2.602s (+3.3%)	0.410s	12	1.60x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.711s (-37.3% 🟢)	3.703s (-26.5% 🟢)	0.992s	9	1.00x
▲ Vercel	Nitro	2.900s (-24.9% 🟢)	3.810s (-20.4% 🟢)	0.911s	8	1.07x
▲ Vercel	Next.js (Turbopack)	3.087s (-32.3% 🟢)	3.939s (-27.0% 🟢)	0.852s	8	1.14x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.301s (-3.3%)	3.282s (-1.2%)	0.981s	10	1.00x
💻 Local	Next.js (Turbopack)	2.609s (+1.2%)	3.008s (-1.0%)	0.399s	10	1.13x
💻 Local	Express	2.653s (+3.7%)	3.127s (+3.6%)	0.474s	10	1.15x
🐘 Postgres	Nitro	9.514s (-13.7% 🟢)	10.113s (-11.2% 🟢)	0.599s	4	4.13x
🐘 Postgres	Next.js (Turbopack)	12.229s (-8.5% 🟢)	12.373s (-11.9% 🟢)	0.144s	3	5.31x
🐘 Postgres	Express	12.239s (-2.8%)	12.752s (-2.3%)	0.513s	3	5.32x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.024s (-20.1% 🟢)	3.859s (-11.9% 🟢)	0.835s	8	1.00x
▲ Vercel	Nitro	3.126s (-3.0%)	3.786s (-5.5% 🟢)	0.660s	8	1.03x
▲ Vercel	Next.js (Turbopack)	3.291s (-19.1% 🟢)	4.093s (-13.2% 🟢)	0.802s	8	1.09x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.116s (~)	0.999s (~)	0.012s (-1.7%)	1.018s (~)	0.902s	10	1.00x
💻 Local	Next.js (Turbopack)	0.150s (+0.9%)	1.003s (~)	0.017s (+0.6%)	1.028s (~)	0.878s	10	1.29x
💻 Local	Express	0.182s (-1.8%)	0.992s (~)	0.017s (+5.7% 🔺)	1.024s (~)	0.842s	10	1.57x
🐘 Postgres	Next.js (Turbopack)	1.122s (-19.9% 🟢)	1.924s (+12.6% 🔺)	0.000s (+Infinity% 🔺)	2.021s (~)	0.899s	10	9.67x
🐘 Postgres	Nitro	2.147s (-8.0% 🟢)	2.897s (+7.0% 🔺)	0.000s (~)	3.016s (~)	0.869s	10	18.51x
🐘 Postgres	Express	2.270s (-0.9%)	2.774s (+0.7%)	0.000s (+Infinity% 🔺)	3.016s (~)	0.745s	10	19.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.958s (+2.4%)	3.328s (+5.8% 🔺)	0.428s (-41.0% 🟢)	4.263s (-2.0%)	1.305s	10	1.00x
▲ Vercel	Nitro	2.963s (+2.8%)	3.276s (+2.4%)	0.489s (+18.8% 🔺)	4.237s (+4.0%)	1.274s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.964s (-1.9%)	3.170s (-1.8%)	0.677s (+46.3% 🔺)	4.346s (+5.1% 🔺)	1.382s	10	1.00x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	8/8
🐘 Postgres	Next.js (Turbopack)	5/8
▲ Vercel	Nitro	4/8

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	8/8
Next.js (Turbopack)	💻 Local	8/8
Nitro	💻 Local	8/8

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• Samples: Number of benchmark iterations run
• vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

• 💻 Local: In-memory filesystem world (local development)
• 🐘 Postgres: PostgreSQL database world (local development)
• ▲ Vercel: Vercel production/preview deployment
• 🌐 Starter: Community world (local development)
• 🌐 Turso: Community world (local development)
• 🌐 MongoDB: Community world (local development)
• 🌐 Redis: Community world (local development)
• 🌐 Jazz: Community world (local development)

---

📋 View full workflow run

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	457	0	38	495
✅ 💻 Local Development	418	0	32	450
✅ 📦 Local Production	418	0	32	450
✅ 🐘 Local Postgres	418	0	32	450
✅ 🪟 Windows	45	0	0	45
❌ 🌍 Community Worlds	31	161	0	192
✅ 📋 Other	123	0	12	135
Total	1910	161	146	2217

❌ Failed Tests

🌍 Community Worlds (161 failed)

mongodb (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

redis (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

starter (41 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• health check (CLI) - workflow health command reports healthy endpoints
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

turso (40 failed):

• addTenWorkflow
• addTenWorkflow
• should work with react rendering in step
• promiseAllWorkflow
• promiseRaceWorkflow
• promiseAnyWorkflow
• readableStreamWorkflow
• hookWorkflow
• webhookWorkflow
• sleepingWorkflow
• nullByteWorkflow
• workflowAndStepMetadataWorkflow
• outputStreamWorkflow
• outputStreamInsideStepWorkflow - getWritable() called inside step functions
• fetchWorkflow
• promiseRaceStressTestWorkflow
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• hookCleanupTestWorkflow - hook token reuse after workflow completion
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
• closureVariableWorkflow - nested step functions with closure variables
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
• pathsAliasWorkflow - TypeScript path aliases resolve correctly
• Calculator.calculate - static workflow method using static step methods from another class
• AllInOneService.processNumber - static workflow method using sibling static step methods
• ChainableService.processWithThis - static step methods using this to reference the class
• thisSerializationWorkflow - step function invoked with .call() and .apply()
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	41	0	4
✅ example	41	0	4
✅ express	41	0	4
✅ fastify	41	0	4
✅ hono	41	0	4
✅ nextjs-turbopack	44	0	1
✅ nextjs-webpack	44	0	1
✅ nitro	41	0	4
✅ nuxt	41	0	4
✅ sveltekit	41	0	4
✅ vite	41	0	4

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	41	0	4
✅ express-stable	41	0	4
✅ fastify-stable	41	0	4
✅ hono-stable	41	0	4
✅ nextjs-turbopack-stable	45	0	0
✅ nextjs-webpack-stable	45	0	0
✅ nitro-stable	41	0	4
✅ nuxt-stable	41	0	4
✅ sveltekit-stable	41	0	4
✅ vite-stable	41	0	4

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	45	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
❌ mongodb	5	40	0
✅ redis-dev	3	0	0
❌ redis	5	40	0
✅ starter-dev	3	0	0
❌ starter	4	41	0
✅ turso-dev	3	0	0
❌ turso	5	40	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	41	0	4
✅ e2e-local-postgres-nest-stable	41	0	4
✅ e2e-local-prod-nest-stable	41	0	4

---

📋 View full workflow run

[matchai]

These afterFiles are no longer hit now that we rewrite in the proxy.