Cohere
c4ai-aya-expanse-8b model retirement
Stopped workingSubscribe to CohereShare
Calls to the model c4ai-aya-expanse-8b on Cohere stopped working on April 4, 2026.
What to use instead of c4ai-aya-expanse-8b
Cohere recommends moving to command-r7b-12-2024, command-a-03-2025, or command-a-reasoning-08-2025.
Facts
- API
- Cohere
api.cohere.ai - Model
c4ai-aya-expanse-8b- Kind
- Model retirement
- Takes effect
- April 4, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Cohere's own pages
Questions
When does c4ai-aya-expanse-8b shut down?
Calls to the model c4ai-aya-expanse-8b on Cohere stopped working on April 4, 2026.
What happens to calls after April 4, 2026?
They have failed since April 4, 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.