gpt-5.1 shutdown date: May 15, 2027 (Azure AI Foundry)

Facts

API: Azure AI Foundry *.services.ai.azure.com
Model: gpt-5.1
Kind: Model retirement
Takes effect: May 15, 2027
Calls after that day: Fail
Source: Deprecations page
Last updated: October 28, 2026
Verified: October 29, 2026, against Azure AI Foundry's own pages

Questions

When does gpt-5.1 shut down?

Calls to the model gpt-5.1 on Azure AI Foundry stop working on May 15, 2027.

What happens to calls after May 15, 2027?

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-5.1 on other APIs 1

Apr 1, 2027 OpenAI gpt-5.1Model retirement Stops workingin 154 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 May 15, 2027.

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