Assistants API changelog

Every change to Assistants API that Modelpeers has recorded, newest first, each with the source it came from. The record starts Aug 26, 2026.

All (1)Retiring (1)

August 2026

API at OpenAI

RetiredAug 26, 2026

Assistants API shut down

The Assistants API shut down on August 26, 2026. OpenAI points users to the Responses API and Conversations API.

Who is affected:: Apps still calling the Assistants API.
Action needed:: Migrate to the Responses and Conversations APIs.

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