Azure AI Foundry
o4-mini model retirement
Stops working
On November 19, 2026, model o4-mini will be retired. Calls targeting model o4-mini will fail after that day. Ensure your integrations are updated before this date to prevent service interruptions.
What to use instead of o4-mini
Move to gpt-5.6-terra, recommended by Microsoft.
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
o4-mini- Kind
- Model retirement
- Takes effect
- November 19, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does o4-mini shut down?
Calls to the model o4-mini on Azure AI Foundry stop working on November 19, 2026.
What happens to calls after November 19, 2026?
They fail from that day.
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.
o4-mini on other APIs 2
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OpenAI
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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 November 19, 2026.