Claude Models Move Into AWS GovCloud With Compliance Certifications Attached

AWS says Anthropic's Claude Opus 5.5 and Claude Sonnet 5.5 are available in AWS GovCloud (US) Regions, which the company frames as an on-ramp for AI-assisted development on workloads with regulatory or compliance requirements, ITAR among them. The post notes that Claude Sonnet 5 holds FedRAMP Class D (formerly High) certification and DoD Impact Level 4 and 5 authorization. For teams in regulated environments the deciding question is often less whether a model is capable than whether it is permitted to be used at all — and that is a paperwork race as much as a capability one.