Azure AI Foundry
cohere-rerank-v3.5 model retirement
Stopped workingSubscribe to Azure AI FoundryShare
On May 14, 2026, Azure AI Foundry retired model cohere-rerank-v3.5. Requests targeting this model fail since that date. The change affects all calls relying on version 1 of the model.
What to use instead of cohere-rerank-v3.5
Microsoft recommends migrating to Cohere-rerank-v4.0-pro or Cohere-rerank-v4.0-fast.
In Azure AI Foundry's words
Model: Cohere-rerank-v3.5; Version: 1; Lifecycle: Retired; Retirement date: 2026-05-14; Replacement: Cohere-rerank-v4.0-pro, Cohere-rerank-v4.0-fast
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
cohere-rerank-v3.5- Kind
- Model retirement
- Takes effect
- May 14, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does cohere-rerank-v3.5 shut down?
Calls to the model cohere-rerank-v3.5 on Azure AI Foundry stopped working on May 14, 2026.
What happens to calls after May 14, 2026?
They have failed since May 14, 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.
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You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.