Claude Opus 5.5 is now available on AWS

Aamna Najmi, Dani Mitchell, Eugenio Soltero, Sofian HamitiAWS Blogs — EnglishPublished Sep 23, 2026, 01:38 AM

Claude Opus 5.5, Anthropic’s most capable Opus model for agentic coding, knowledge work, and long-running tasks, is now available on Amazon Bedrock and Claude Platform on AWS.

This post covers what’s new in Opus 5.5, practical guidance, and how to start building with the model on Amazon Bedrock.

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