# When is o1-preview retired?

o1-preview on OpenAI was retired on Jul 28, 2025.

OpenAI recommends migrating to o3.

> Warning: the replacement o3 is deprecated (shutdown 2026-12-11). Deepest tracked model in the chain: o3 (deprecated).

- Provider: OpenAI
- Model ID: o1-preview
- Status: retired
- Deprecation announced: 2025-04-28
- Shutdown date: 2025-07-28
- Replacement: o3
- Replacement status: deprecated
- Replacement kind: same_family
- End of replacement chain: o3 (deprecated, openai)
- 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/o1-preview/

Cite as: AI Deprecations, "o1-preview deprecation date", https://aideprecations.com/openai/o1-preview/ (source: https://developers.openai.com/api/docs/deprecations). Data CC BY 4.0. Always confirm on the official source.