Claude Opus 5.5 is now available on AWS GovCloud (US)

UpdateSep 22, 2026VerifiedAdded Sep 22, 2026

AWS GovCloud (US) now offers Claude Opus 5.5, Anthropic’s most capable Opus model yet and, the first of the Claude 5.5 model family, a better collaborator that handles long-running coding and knowledge work, reporting back clearly on what it did, what it found, and what it needs next.

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Read AWS's release notes

https://aws.amazon.com/about-aws/whats-new/2026/09/claude-opus-5-5-aws-govcloud/

Summaries of vendors' own notes. Product names and logos belong to their owners; logos via logo.dev.

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