OpenAI · Model retirement
o1-2024-12-17
Stops working (tomorrow)
On October 23, 2026, the model o1-2024-12-17 will be retired. Any requests made to model o1-2024-12-17 after this date will fail.
What to use instead of o1-2024-12-17
Move to gpt-5.6-sol, recommended by OpenAI.
Facts
- API
- OpenAI
api.openai.com - Model
o1-2024-12-17- Kind
- Model retirement
- Takes effect
- October 23, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
More from OpenAI
- ft-babbage-002 Stops working
- ft-davinci-002 Stops working
- ft-gpt-3.5-turbo Stops working
- ft-gpt-4 Stops working
- ft-gpt-4.1-nano Stops working
- ft-gpt-4.1-nano-2025-04-14 Stops working