Azure AI Foundry
gpt-4o model retirement
Stops working
On December 9, 2026, Azure AI Foundry will retire model gpt-4o. Requests targeting model gpt-4o will fail after this date. Update your integrations before the cutoff to prevent disruptions.
What to use instead of gpt-4o
Move to gpt-5.6-sol, which is recommended by Microsoft.
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
gpt-4o- Kind
- Model retirement
- Takes effect
- December 9, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does gpt-4o shut down?
Calls to the model gpt-4o on Azure AI Foundry stop working on December 9, 2026.
What happens to calls after December 9, 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.
gpt-4o on other APIs 2
-
OpenAI
gpt-4oModel retirement Stops workingin 77 days -
Azure OpenAI
gpt-4oModel retirement Stops workingin 337 days
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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 December 9, 2026.