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The aisdk/openai package is the official OpenAI provider for the PHP AI SDK. It bridges the unified PHP AI SDK interface to OpenAI’s Chat Completions and Images APIs, giving your application access to GPT-4o, o-series reasoning models, DALL-E, and gpt-image-1 — all through a clean, type-safe PHP API.

Installation

Install via Composer and configure your API key in under a minute.

Quickstart

Generate your first AI response with five lines of PHP.

Configuration

Set API keys, base URLs, organization IDs, and custom headers.

API Reference

Full reference for the OpenAI facade and provider classes.

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What you can build

Text Generation

Chat completions with system prompts, temperature, and token limits.

Streaming

Server-sent event streaming for real-time token delivery.

Tool Calling

Define tools with typed schemas and let the model invoke them.

Structured Output

Force JSON Schema responses for reliable data extraction.

Reasoning

Control reasoning effort on o-series models like o3 and o4-mini.

Image Generation

Generate images with gpt-image-1, DALL-E 3, and DALL-E 2.

Multimodal Input

Pass images, audio, and files alongside text in your prompts.

Custom Models

Register new OpenAI models without waiting for a package release.

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Quick example

quickstart.php
use AiSdk\Generate;
use AiSdk\OpenAI;

$result = Generate::text()
    ->model(OpenAI::model('gpt-4o'))
    ->instructions('Write short, clear answers.')
    ->prompt('Explain closures in PHP.')
    ->run();

echo $result->text;
1

Install the package

composer require aisdk/openai
2

Set your API key

export OPENAI_API_KEY=sk-...
3

Call the API

Use OpenAI::model() or OpenAI::image() to pick a model, then chain fluent builder methods and call ->run().

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