OpenAI · Model retirement
ft-gpt-4.1-nano
Stops working (tomorrow)
Calls to the model ft-gpt-4.1-nano on OpenAI stop working on October 23, 2026.
What to use instead of ft-gpt-4.1-nano
Move to gpt-5.6-luna, recommended by OpenAI.
Facts
- API
- OpenAI
api.openai.com - Model
ft-gpt-4.1-nano- Kind
- Model retirement
- Takes effect
- October 23, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
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