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Azure AI Foundry cohere-rerank-v4.0-fast model retirement

Stops workingin 311 daysSubscribe to Azure AI FoundryShare

On September 13, 2027, model cohere-rerank-v4.0-fast will be retired. Calls targeting this model will fail after that date. The change affects calls targeting version 1 of Cohere-rerank-v4.0-fast.


What to use instead of cohere-rerank-v4.0-fast

Move to Cohere-rerank-v5-fast, which Microsoft recommends as the replacement.

In Azure AI Foundry's words

Model: Cohere-rerank-v4.0-fast; Version: 1; Lifecycle: GA; Retirement date: 2027-09-13; Replacement: Cohere-rerank-v5-fast

Azure AI Foundry, Deprecations page

Facts

API
Azure AI Foundry *.services.ai.azure.com
Model
cohere-rerank-v4.0-fast
Kind
Model retirement
Takes effect
September 13, 2027
Calls after that day
Fail
Source
Deprecations page
Last updated
Verified
, against Azure AI Foundry's own pages

Questions

When does cohere-rerank-v4.0-fast shut down?

Calls to the model cohere-rerank-v4.0-fast on Azure AI Foundry stop working on September 13, 2027.

What happens to calls after September 13, 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.


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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 September 13, 2027.

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