Claude Sonnet 5 launches on AWS via Bedrock and Claude Platform

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Anthropic's Claude Sonnet 5 — described as the most capable model in Anthropic's Sonnet line and the first from its latest generation — is now available on AWS through two access paths: Amazon Bedrock and the new Claude Platform on AWS. The announcement highlights the model's agentic capabilities: precise tool-calling, multi-step state retention, and error recovery designed to increase the rate at which autonomous agent runs complete successfully without human intervention.

Amazon Bedrock keeps data within AWS infrastructure and layers on AWS-managed features such as Guardrails and Knowledge Bases. The Claude Platform on AWS option gives developers Anthropic's native API and console experience but unified with AWS billing and authentication. Pricing follows Anthropic's existing Sonnet tier, positioning the model as a high-capability but cost-balanced option for coding, agent pipelines, and professional knowledge work.