Agents API

OpenAI has released the Agents API in public beta, giving developers access to the same cloud infrastructure that powers Codex and ChatGPT. The API supports long-running agents, parallel tool use, and sub-agent delegation, with billing based solely on token usage.

OpenAI shipped v3.13.0 of its openai-python library, adding support for a new Agents API. The release is a client-library update, not a new model.