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

Calls to the model ca.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: ca.anthropic.claude-sonnet-4-5-20250929-v1:0
- Kind: Model retirement
- Announced: October 8, 2026
- Takes effect: April 8, 2027
- Calls after that day: fail
- Calls it hits: `model ca.anthropic.claude-sonnet-4-5-20250929-v1:0`
- Source: [Deprecations page](https://docs.aws.amazon.com/bedrock/latest/userguide/model-lifecycle-legacy.html)
- Page: https://www.okapi.bot/models/amazon-bedrock/ca.anthropic.claude-sonnet-4-5-20250929-v1-0/