Azure AI Foundry
claude-opus-4-1 model retirement
Stopped workingSubscribe to Azure AI FoundryShare
On August 5, 2026, Azure AI Foundry retired model claude-opus-4-1. Calls targeting this model fail since that date. The retirement affects all requests specifying model claude-opus-4-1.
What to use instead of claude-opus-4-1
Migrate to claude-opus-5. Note that claude-opus-5 stops working on July 8, 2027, and no permanent replacement is named yet.
In Azure AI Foundry's words
Model: claude-opus-4-1; Version: —; Lifecycle: Retired; Retirement date: 2026-08-05; Replacement: claude-opus-5
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
claude-opus-4-1- Released
- August 5, 2025 (models.dev)
- Kind
- Model retirement
- Takes effect
- August 5, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does claude-opus-4-1 shut down?
Calls to the model claude-opus-4-1 on Azure AI Foundry stopped working on August 5, 2026.
What happens to calls after August 5, 2026?
They have failed since August 5, 2026.
When was claude-opus-4-1 released?
claude-opus-4-1 was released on August 5, 2025, according to models.dev.
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.
claude-opus-4-1 on other APIs 2
-
Anthropic
claude-opus-4-1Model retirement Stopped working -
No date
OpenCode
claude-opus-4-1Model retirement Deprecated, no date
More from Azure AI Foundry 10
-
deepseek-r1-0528Model retirement Stopped working -
deepseek-v3-0324Model retirement Stopped working -
sora-2Model retirement Stopped working -
mistral-document-ai-2505Model retirement Stopped working -
stable-diffusion-3.5-largeModel retirement Stopped working -
stable-image-coreModel retirement Stopped working -
stable-image-ultraModel retirement Stopped working -
deepseek-r1Model retirement Stopped working -
mai-image-2Model retirement Stopped working -
mai-image-2eModel 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.