Federal court maintains Pentagon's blacklisting of Anthropic from military contracts

What This is

• A U.S. appeals court declined to block the Pentagon’s blacklisting of Anthropic from Defense Department contracts.
• The appeals court upheld the blacklist in a 2-1 decision and rejected Anthropic’s claims that the ban was arbitrary and unconstitutional.
• The Pentagon designated Anthropic as a national-security supply-chain risk, which keeps it off Defense Department contracts.
• The Pentagon sought “all lawful uses” or broad freedom to use Claude, while Anthropic said its guardrails would bar uses like fully autonomous weapons and mass domestic surveillance.
• Anthropic has said it would not remove safety safeguards from Claude, and the Pentagon cited that stance in its decision.
• Anthropic says the designation has cost it billions and harmed its IPO prospects, and it is considering further court review.

Why This Matters

• The case affects who sets the rules for military AI: the government buying it, or the company building it.
• It highlights the tension between AI safety limits and the military’s desire for wide freedom to use tools on sensitive missions.
• It signals courts may give the Pentagon broad room to act when it cites national security, even when the decision hits business prospects and raises constitutional claims.