When is o1-preview retired?
retired
o1-preview on OpenAI was retired on Jul 28, 2025.
Replacement: o3
Warning: the replacement is also deprecated on Dec 11, 2026. o3 is scheduled to shut down too. The deepest model we track in the chain is o3, which is deprecated.
| Provider (API) | OpenAI |
|---|---|
| Model ID | o1-preview |
| Deprecation announced | Apr 28, 2025 |
| Shutdown date | Jul 28, 2025 |
| Section on source page | 2025-04-28: o1-preview and o1-mini |
| Source | https://developers.openai.com/api/docs/deprecations |
| Last checked | 2026-11-06T05:52:31+00:00 |
Last checked 2026-11-06 · Source · Markdown · JSON
Migration
- OpenAI lists
o3as the recommended replacement foro1-preview(official source). - Read the provider's official notes on the source page before switching model IDs.
Embed this date
Copy this into your README or docs (it updates automatically):
<a href="https://aideprecations.com/openai/o1-preview/"><img src="https://aideprecations.com/badge/openai/o1-preview.svg" alt="o1-preview shutdown date"></a>
More embeds on the developers page.
Grep commands for code/YAML/Terraform, direct API vs Bedrock/Vertex/Azure date diff, replacement parity matrix, eval + shadow-traffic cutover, post-shutdown 404 guardrails. Preview it, or get it now:
Mon/Wed/Fri + breaking deprecations, with official links. Confirming also unlocks your personal shutdown calendar feed.
Double opt-in: we email you a Confirm link. Unsubscribe anytime. Other ways to get alerts: RSS · Atom · personal calendar feed · JSON changes · webhooks · MCP subscribe_alerts. All subscribe options
AI agents: subscribe in one call with a webhook (POST https://aideprecations.com/api/subscribe, see docs) or the MCP subscribe_alerts tool at https://aideprecations.com/mcp (setup). Free.