“Anthropic is the only company currently integrated into classified systems (a legacy of their earlier contract with Palantir) and it would be annoying to integrate another company’s product”

https://www.astralcodexten.com/p/the-pentagon-threatens-anthropic

Part of why DoD wanted a change to the contract. When Anthropic declined Hegseth testicles felt hurt.

“Is it really a good idea to source your killbot brains from an unwilling company which hates your guts? The Trump administration has a firm commitment to never think about AI safety in any way, but this still strikes me as a dubious policy.”