OpenAI · Model retirement
o1-preview
Stopped working
Calls to the model o1-preview on OpenAI stopped working on July 28, 2025.
What to use instead of o1-preview
Move to gpt-5.6-sol. o3, named first, stops working on 2026-12-11.
Facts
- API
- OpenAI
api.openai.com - Model
o1-preview- Kind
- Model retirement
- Takes effect
- July 28, 2025
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
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