Azure GCC
Logical separation, widest Microsoft AI
FedRAMP Moderate. GPT-5.x and Claude via Foundry. FCI / some CUI Basic.
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Three US government clouds.Three different AI catalogs.
GCC is a logical enclave on commercial Azure. GCC High and AWS GovCloud are isolated High / IL4–5 partitions. Pick the boundary from the data — then check which frontier models actually live there.
Azure GCC High
Azure Government, gpt-5.1 ceiling
FedRAMP High, ITAR, CUI Specified. No Claude. No GPT-5.2+.
AWS GovCloud
Isolated partition, Claude + GPT-5.4
FedRAMP High, IL4/5. Opus 5, Sonnet 5, GPT-5.4 on Bedrock.