# When is Assistants API retired?

Assistants API on OpenAI was retired on Aug 26, 2026.

OpenAI recommends migrating to Responses API and Conversations API.

- Provider: OpenAI
- Model ID: Assistants API
- Status: retired
- Deprecation announced: 2025-08-20
- Shutdown date: 2026-08-26
- Replacement: Responses API and Conversations API
- Replacement status: unknown
- Replacement kind: null (replacement_not_a_model_id)
- End of replacement chain: unknown
- Official source: https://developers.openai.com/api/docs/deprecations
- Last checked: 2026-11-06T05:52:31+00:00
- Check status: verified
- Provider coverage today: https://aideprecations.com/api/v1/coverage.json
- Page: https://aideprecations.com/openai/assistants-api/

Cite as: AI Deprecations, "Assistants API deprecation date", https://aideprecations.com/openai/assistants-api/ (source: https://developers.openai.com/api/docs/deprecations). Data CC BY 4.0. Always confirm on the official source.