Azure OpenAI
o4-mini model retirement
Stops workingSubscribe to Azure OpenAIShare
Calls to the model o4-mini on Azure OpenAI stop working on October 16, 2027.
In Azure OpenAI's words
Model: o4-mini; Version: 2025-04-16; Training retirement date: No earlier than 2027-04-16 1; Deployment retirement date: 2027-10-16
Facts
- API
- Azure OpenAI
*.openai.azure.com - Model
o4-mini- Released
- April 16, 2025 (models.dev)
- Kind
- Model retirement
- Takes effect
- October 16, 2027
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure OpenAI's own pages
Questions
When does o4-mini shut down?
Calls to the model o4-mini on Azure OpenAI stop working on October 16, 2027.
What happens to calls after October 16, 2027?
They fail from that day.
When was o4-mini released?
o4-mini was released on April 16, 2025, according to models.dev.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
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Is your code calling this?
Okapi finds the calls this change hits in your repo and opens the pull request with the fix before October 16, 2027.