grok-4-20-reasoning shutdown date (Azure AI Foundry)

Facts

API: Azure AI Foundry *.services.ai.azure.com
Model: grok-4-20-reasoning
Kind: Model retirement
Takes effect: April 6, 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 grok-4-20-reasoning shut down?

Calls to the model grok-4-20-reasoning on Azure AI Foundry stop working on April 6, 2027.

What happens to calls after April 6, 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.

More from Azure AI Foundry 10

Apr 2, 2027 claude-mythos-previewModel retirement Stops workingin 155 days
Apr 6, 2027 claude-opus-4-7Model retirement Stops workingin 159 days
Apr 6, 2027 gpt-audio-miniModel retirement Stops workingin 159 days
Apr 6, 2027 grok-4-20-non-reasoningModel retirement Stops workingin 159 days
Apr 7, 2027 gpt-5-proModel retirement Stops workingin 160 days
Apr 7, 2027 gpt-image-1-miniModel retirement Stops workingin 160 days
Apr 14, 2027 gpt-4.1Model retirement Stops workingin 167 days
Apr 14, 2027 gpt-4.1-miniModel retirement Stops workingin 167 days
Apr 14, 2027 gpt-4.1-nanoModel retirement Stops workingin 167 days
Apr 14, 2027 gpt-4o-miniModel retirement Stops workingin 167 days

Is your code calling this?

Okapi finds the calls this change hits in your repo and opens the pull request with the fix before April 6, 2027.

Add to GitHub