Azure AI Foundry
gpt-5.1-chat model retirement
Stopped workingSubscribe to Azure AI FoundryShare
On June 29, 2026, the model gpt-5.1-chat reached its retirement date on Azure AI Foundry. Calls using this model fail since that day.
What to use instead of gpt-5.1-chat
The provider listed gpt-chat-latest as a replacement, but that model stops working on November 17, 2026. No replacement that holds is named yet.
In Azure AI Foundry's words
Model: gpt-5.1-chat; Version: 2025-11-13; Lifecycle: Retired; Retirement date: 2026-06-29; Replacement: gpt-chat-latest
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
gpt-5.1-chat- Kind
- Model retirement
- Takes effect
- June 29, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does gpt-5.1-chat shut down?
Calls to the model gpt-5.1-chat on Azure AI Foundry stopped working on June 29, 2026.
What happens to calls after June 29, 2026?
They have failed since June 29, 2026.
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.
More from Azure AI Foundry 10
-
llama-3.2-11b-vision-instructModel retirement Stopped working -
llama-3.2-90b-vision-instructModel retirement Stopped working -
meta-llama-3.1-405b-instructModel retirement Stopped working -
meta-llama-3.1-8bModel retirement Stopped working -
meta-llama-3.1-8b-instructModel retirement Stopped working -
gpt-5.3-chatModel retirement Stopped working -
deepseek-r1-0528Model retirement Stopped working -
deepseek-v3-0324Model retirement Stopped working -
deepseek-v3.1Model retirement Stopped working -
sora-2Model retirement Stopped working
You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.