What it does
A developer-facing platform providing programmatic access to OpenAI's model family (GPT, o-series, image, audio, embeddings) via REST API, enabling third-party products and services to integrate OpenAI capabilities.
Key features
- Responses API with built-in tools (web search, file search, code interpreter, computer use)
- Streaming and function calling (tool use)
- Structured outputs (JSON Schema)
- Fine-tuning support (supervised and reinforcement-based)
- Batch API (50% cost reduction for non-time-sensitive workloads)
- Realtime API for low-latency audio streaming
- Remote MCP server support
Integrations
Microsoft Azure OpenAI ServiceAmazon BedrockZapierLangChainLlamaIndexCursorReplit