OpenAI Python SDK
https://github.com/openai/openai-python- Category
- Developer Tools
- Rank
- No. 144Tools index
- Pricing
- Open Source
- Type
- TOOL
- Builder
- openai
- GitHub
- 31.6k stars
- Latest release
- v3.9.0
- Date
About
Official Python library for the OpenAI API — chat, completions, embeddings, audio, batch, files, fine-tuning, and the Responses API.
What it does
It turns OpenAI’s remote services into typed Python objects and clients. Developers can choose synchronous or asynchronous operation, iterate through paginated results, consume streamed events, and use WebSockets for low-latency text and audio conversations. Request fields receive type definitions, while responses arrive as Pydantic models.
Why it's ranked here
This is a strong default for Python applications that call OpenAI. Its generated API coverage, matching synchronous and asynchronous clients, typed requests, structured responses, streaming support, and workload identity options reduce integration work. The verdict is tempered by a large generated surface and some event-driven error handling that applications must manage explicitly.
What's good
The library supports editor autocomplete through typed request fields and Pydantic response models. Synchronous and asynchronous clients expose otherwise identical functionality. Automatic pagination removes manual page fetching. Server-sent event streaming and WebSocket-based realtime sessions cover both ordinary requests and low-latency conversations. Workload identity supports short-lived credentials from Kubernetes, Azure, Google Cloud, or custom providers.
Tradeoffs
It requires Python 3.10 or newer and brings several runtime dependencies, including HTTPX2 and Pydantic. Realtime errors arrive as events, do not raise directly, and leave the connection open, so callers must build explicit handling. Custom transports, authentication handlers, timeouts, hooks, or request mocks may also require migration work around the default HTTP client.
How to use it well
Choose it for typed Python services, scripts, notebooks, and asynchronous workers that communicate with OpenAI over REST or realtime connections. Prefer the Responses interface for new model interactions, keep credentials outside source control, and use workload identity in managed environments. It handles client-side API integration, not the surrounding product workflow, user interface, or application-specific error policy.
Technical notes+
README.md documents synchronous and asynchronous clients, SSE streaming, WebSocket realtime sessions, auto-pagination, TypedDict request parameters, and Pydantic responses. pyproject.toml defines the Python 3.10 floor, Hatchling builds, a src layout, optional aiohttp, realtime, data, voice, and Bedrock extras, plus strict Pyright and mypy checks and pytest configuration. src/openai/__init__.py exports OpenAI, AsyncOpenAI, AzureOpenAI, BedrockOpenAI, stream classes, transport clients, and a broad exception hierarchy; it also selects OpenAI, Azure, or Amazon Bedrock module clients from configuration and credentials. src/openai/resources/__init__.py exposes generated synchronous, asynchronous, raw-response, and streaming resource variants. src/openai/auth/__init__.py exports workload identity providers for Kubernetes, Azure, and Google Cloud.
Observed
- License
- Apache-2.0
- Primary language
- Python
- Installation
- Published as the openai package on PyPI and installed with pip
- Interface
- Python library for REST API access, SSE streaming, and WebSocket realtime connections
- Python support
- Requires Python 3.10 or newer
- Platform support
- Classified for Windows, macOS, Linux, POSIX, and operating-system-independent use
- Packaging
- Uses Hatchling with packages under src/openai
- Testing and typing
- Configures pytest, strict Pyright, mypy, and Ruff
Read from README.md, pyproject.toml, src/openai/__init__.py, src/openai/lib/__init__.py, src/openai/auth/__init__.py, src/openai/types/__init__.py, src/openai/_utils/__init__.py, src/openai/_extras/__init__.py, src/openai/_vendor/__init__.py, src/openai/helpers/__init__.py, src/openai/providers/__init__.py, src/openai/resources/__init__.py, src/openai/types/beta/__init__.py, src/openai/types/chat/__init__.py, src/openai/types/admin/__init__.py.
What it can do
Generate chat responses
Text messages and conversation context → AI-generated chat responses
Complete text prompts
Partial text or prompts → Completed text content
Generate text embeddings
Text strings → Vector embeddings
Transcribe audio to text
Audio files → Text transcription
Generate speech from text
Text content → Audio files
Process batch requests
Multiple API requests → Batch processing results
Upload and manage files
Files for processing → File objects and metadata
Fine-tune AI models
Training data and model parameters → Custom fine-tuned models
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Editorially curated, with community endorsements as a secondary signal. Corrections welcome.