Vertex AI
claude-sonnet-4-5@* model retirement
Stops workingSubscribe to Vertex AIShare
Calls to models claude-sonnet-4-5@* on Vertex AI stop working on November 30, 2026.
Calls it hits
models claude-sonnet-4-5@*
Facts
- API
- Vertex AI
aiplatform.googleapis.com - Kind
- Model retirement
- Takes effect
- November 30, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Vertex AI's own pages
Questions
When does this change take effect?
Calls to models claude-sonnet-4-5@* on Vertex AI stop working on November 30, 2026.
What happens to calls after November 30, 2026?
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 Vertex AI 10
-
deepseek-ocr-maasModel retirement Stopped working -
deepseek-r1-0528-maasModel retirement Stopped working -
deepseek-v3.1-maasModel retirement Stopped working -
deepseek-v3.2-maasModel retirement Stopped working -
glm-4.7-maasModel retirement Stopped working -
glm-5-maasModel retirement Stopped working -
gemini-3.6-flashModel retirement Stops workingin 13 days -
/v1beta1/projects/{id}/locations/{id}/extensions*Endpoint removal Stops workingin 20 days -
claude-sonnet-4-5Model retirement Stops workingin 24 days -
gemini-live-2.5-flash-native-audioModel retirement Stops workingin 37 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 November 30, 2026.