OpenAI Responses API

The unified, stateful API endpoint for advanced model interactions, consolidating the best features of Chat Completions and Assistants.

The OpenAI Responses API is our most advanced, single interface for generating model outputs (text and image). It unifies the functionality of the Chat Completions and Assistants APIs into one powerful endpoint: `/v1/responses`. This new API natively manages conversation state, eliminating the need for manual history tracking. Crucially, it integrates built-in tools like Web Search, File Search, and Function Calling, enabling models (e.g., GPT-4o) to execute agentic workflows and ground responses with real-time or private data, delivering superior, context-aware results.

https://platform.openai.com/docs/api-reference/responses