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Claude Opus 5.5 and Sonnet 5.5 Now Run Inside AWS GovCloud, Clearing the Way for ITAR-Regulated Workloads

Claude · By: AIReport Admin · 1 hour ago · 👁 2
Claude Opus 5.5 and Sonnet 5.5 Now Run Inside AWS GovCloud, Clearing the Way for ITAR-Regulated Workloads

AWS and Anthropic made Claude Opus 5.5 and Sonnet 5.5 available on Amazon Bedrock in the AWS GovCloud (US) Regions, with FedRAMP Class D certification and DoD Impact Level 4/5 authorization. Developers in regulated regimes including ITAR can now run Claude Code workflows, with customer content not stored, logged or used for training under a Zero Operator Access architecture.

Anthropic's Claude models have reached one of the most demanding corners of US government computing. AWS announced that Claude Opus 5.5 and Claude Sonnet 5.5 are now available on Amazon Bedrock in the AWS GovCloud (US) Regions, giving developers working under strict compliance regimes — including ITAR, the International Traffic in Arms Regulations — a sanctioned path to agentic AI-assisted development with Claude Code.

The compliance stack is the story: Claude Sonnet 5 holds FedRAMP Class D certification and Department of Defense Impact Level 4 and 5 authorizations, and Opus 5.5 and Sonnet 5.5 are now certified for FedRAMP Class D on Amazon Bedrock. Those clearances are what allow defense, intelligence-adjacent and other regulated workloads to touch frontier models at all.

Anthropic's announcement details two endpoint surfaces. The bedrock-runtime route is SDK-based and supports Guardrails, Knowledge Bases and invocation logging — the option AWS recommends for teams that need audit trails. The newer bedrock-mantle endpoint exposes the native Anthropic Messages API with server-side tools, background inference and Projects. On both, customer content is not stored, logged or used for model training, built on what AWS calls a Zero Operator Access (ZOA) architecture — meaning AWS operators cannot view customer data.

Setup is aimed at engineering teams rather than individual users: an interactive wizard via /login that connects to Amazon Bedrock, environment variables such as CLAUDE_CODE_USE_BEDROCK=1 with AWS_REGION set to us-gov-west-1, or the Mantle endpoint for teams that want Anthropic-native features. Organizations can also pin specific model versions so every developer in the fleet runs the same model.

The move extends a year of Anthropic's government push. Claude for Government reached general availability earlier this year with FedRAMP High authorization, and the company has been courting public-sector deployments in the US, India and elsewhere. GovCloud is a different bar, though: it is a physically separate cloud reserved for US government customers handling sensitive and export-controlled data, where authorization processes typically take years.

The competitive angle is hard to miss. OpenAI and Google have both been racing to certify their models for government use, and defense-adjacent AI contracts have become a major revenue line for the AI industry. A frontier coding agent running legally inside an ITAR workload is a capability few rivals can currently match — and it gives AWS another differentiator for Bedrock in the public sector.

For Anthropic, whose IPO prospectus leans heavily on enterprise and government revenue concentration, each compliance milestone converts directly into addressable market. For regulated developers, the practical effect is simpler: the most popular agentic coding tool in the industry now works where their data lives, without a compliance exception.

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