o1-mini
retired Retired
o1-mini is a retired OpenAI LLM API model. and shut down on Oct 27, 2025. Migrate any code that still calls o1-mini to openai/o4-mini.
Recommended action: migrate to
openai/o4-mini.
Lifecycle & specs
- Provider
- OpenAI
- API model ID
o1-mini- Status
- retired
- Released
- Sep 12, 2024
- Deprecated
- Apr 28, 2025
- Retirement date
- Oct 27, 2025
- Replacement
openai/o4-mini- Context window
- 128,000 tokens
Source: official OpenAI documentation ↗ · ✓ verified