Anthropic Claude Sonnet 5.5 and Claude Opus 5.5 are now available on Kiro in AWS GovCloud (US)

T1Covered by 1 source · first reported by AWS — What's New / News Blog at 09 Oct, 17:13 UTC

Two new Anthropic models are now available in the Kiro IDE and CLI for the AWS GovCloud (US) Regions. Claude Opus 5.5 is Anthropic's most capable Opus model yet and a step up from Opus 5 on long-running agentic coding work. Opus 5.5 thinks adaptively on every request, deciding how much effort each…

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• T1Anthropic Claude Sonnet 5.5 and Claude Opus 5.5 are now available on Kiro in AWS GovCloud (US)AWS — What's New / News Blog09 Oct, 17:13