sourceability/openai-client

PHP 8.0+ OpenAI API client with fully typed/documented requests+responses models, guzzlehttp/guzzle + symfony/http-client support through HTTPPug, and async/parallel requests.

The client is generated using openai's OpenAPI with jane-php.

Features:

• The requests models are typed and include descriptions from the OpenAPI documentation.
• Uses HTTPPug as the HTTP Abstraction
  • Many supported http clients like guzzlehttp/guzzle or symfony/http-client
  • A lot of useful plugins like Cache or Retry
  • Symfony Bundle
• Async/parallel requests.

This is a community-maintained/unofficial library.

Installation

composer require sourceability/openai-client

Getting started

require__DIR__ . '/vendor/autoload.php';
useSourceability\OpenAIClient\Client;
useSourceability\OpenAIClient\Generated\Model\CreateCompletionRequest;
$apiClient = Client::create(
apiKey: getenv('OPENAI_API_KEY')
);
$requests = [
(newCreateCompletionRequest())
->setModel('text-davinci-003')
->setTemperature(0)
->setMaxTokens(512)
->setPrompt('The jane php library is very useful because'),
newCreateCompletionRequest(
model: 'text-davinci-003',
temperature: 0,
maxTokens: 512,
prompt: 'Symfony symfony symfony is like sourceability on a'
),
];
$completionResponses = $apiClient->createCompletions($requests);
var_dump($completionResponses);

ChatGPT with /v1/chat/completions:

<?phprequire__DIR__ . '/vendor/autoload.php';
useSourceability\OpenAIClient\Client;
useSourceability\OpenAIClient\Generated\Model\ChatCompletionRequestMessage;
useSourceability\OpenAIClient\Generated\Model\CreateChatCompletionRequest;
$apiClient = Client::create(
apiKey: getenv('OPENAI_API_KEY')
);
$requests = [
newCreateChatCompletionRequest(
model: 'gpt-3.5-turbo',
temperature: 0,
messages: [
newChatCompletionRequestMessage(
role: 'user',
content: 'The jane php library is very useful because'
)
],
),
newCreateChatCompletionRequest(
model: 'gpt-3.5-turbo',
temperature: 0,
messages: [
newChatCompletionRequestMessage(
role: 'user',
content: 'Symfony symfony symfony is like sourceability on a'
)
],
),
];
$completionResponses = $apiClient->createChatCompletions($requests);
var_dump($completionResponses);

Cost calculator

You can use ResponseCostCalculator, which relies on brick/money, to calculate the cost of a response:

useSourceability\OpenAIClient\Pricing\ResponseCostCalculator;
$responseCostCalculator = newResponseCostCalculator();
$responseCost = $responseCostCalculator->calculate($myCompletionResponse);
var_dump([
'total' => $responseCost->getTotal()->formatTo('en_US'),
'prompt' => $responseCost->getPrompt()->formatTo('en_US'),
'completion' => $responseCost->getCompletion()->formatTo('en_US'),
]);
array(3) {
["total"]=>
string(10) "$0.0001280"
["prompt"]=>
string(10) "$0.0000980"
["completion"]=>
string(10) "$0.0000300"
}