# global.anthropic.claude-sonnet-4-5-20250929-v1:0

Calls to the model global.anthropic.claude-sonnet-4-5-20250929-v1:0 on Amazon Bedrock stop working on April 8, 2027.

- API: Amazon Bedrock (bedrock.us-east-1.amazonaws.com)
- Model: global.anthropic.claude-sonnet-4-5-20250929-v1:0
- Released: September 29, 2025 (models.dev)
- Kind: Model retirement
- Announced: October 8, 2026
- Takes effect: April 8, 2027
- Calls after that day: fail
- Calls it hits: `model global.anthropic.claude-sonnet-4-5-20250929-v1:0`
- Source: [Deprecations page](https://docs.aws.amazon.com/bedrock/latest/userguide/model-lifecycle-legacy.html)
- Verified: November 6, 2026, against Amazon Bedrock's own pages
- Page: https://www.okapi.bot/models/amazon-bedrock/global.anthropic.claude-sonnet-4-5-20250929-v1-0/

## Amazon Bedrock's words

> Model provider: Anthropic; Model name: Claude Sonnet 4.5; Model ID: anthropic.claude-sonnet-4-5-20250929-v1:0; Regions: af-south-1, ap-east-2, ap-northeast-1, ap-northeast-2, ap-northeast-3, ap-south-1, ap-south-2, ap-southeast-1, ap-southeast-2, ap-southeast-3, ap-southeast-4, ap-southeast-5, ap-southeast-6, ap-southeast-7, ca-central-1, ca-west-1, eu-central-1, eu-central-2, eu-north-1, eu-south

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent