Model and API retirements

Claude Sonnet 4.5 retirement date and replacement

Amazon Bedrock · Model · retires Apr 8, 2027 (in 5 months)Unverified

Vendor page

Dates

Checked Oct 24, 2026 on AWS's page
RetiresApr 8, 2027 (in 5 months)
AnnouncedOct 8, 2026
ReplacementNone named
Identifieranthropic.claude-sonnet-4-5-20250929-v1:0
Model pageclaude-sonnet-4-5 on Models
Model makerAnthropic
NoticeLegacy models: end-of-life dates; public extended access from January 8, 2027
Sourcedocs.aws.amazon.com/bedrock/latest/userguide/model-lifecycle-legacy.html

Changes

AnnouncedUnverifiedOct 10Retires Apr 8, 2027. Legacy models: end-of-life dates; public extended access from January 8, 2027AWSSource

Around the same time on Amazon Bedrock

AWS
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