🫡 Assistants We’re winding down the Assistants API beta. It will sunset one year from now, August 26, 2026. We’ve put together a guide to help you migrate to the Responses API: . Assistants were our early take on how agents could be built (before reasoning models). In the Responses API announcement, we said we’d follow up on deprecating the Assistants API once Responses reached feature parity — and it now has. Based on your feedback, we’ve folded the best parts of Assistants into Responses, including code interpreter and persistent conversations. Responses are simpler, and include built-in tools (deep research, MCP, and computer use). With a single call, you can run multi-step workflows across tools and model turns. And with GPT-5, reasoning tokens are preserved between turns. The Responses API has already overtaken Chat Completions in token activity. It’s our recommended path to integrate with the OpenAI API today, and for the future.