deprecated · OpenAI API
Assistants API
OpenAI lists this API surface for shutdown on 2026-08-26. SunsetPR reports matching call sites without treating an API redesign as a model-ID replacement.
- Shutdown date
- 2026-08-26
- Status
- deprecated
- Official migration
- Responses API and Conversations API
- Repair policy
- Report only
- Provider
- OpenAI
- Official pages checked
- 2026-08-14
Primary evidence
Provider-owned documentation
OpenAI official deprecations page ↗
Report only; the stateful Assistants migration is not a safe model-ID substitution.
Migration caution
The official migration path is Responses API and Conversations API, but request state, tools, streaming, and persistence can require application redesign. SunsetPR does not apply a blind semantic rewrite.
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