DC Circuit appeals court upholds Pentagon's supply-chain risk designation against Anthropic, keeping Claude blocked from military use

A DC Circuit Court of Appeals panel ruled 2-1 to uphold one of two Pentagon supply-chain risk designations against Anthropic, rejecting the company's due process and free speech challenges. This keeps that designation in force indefinitely, so the Department of Defense can keep barring Claude models from military and federal government systems. The second, separate designation was already voided by a San Francisco federal judge in March, so the practical result is a split: one Pentagon block stands, one does not.

This affects Anthropic's ability to sell Claude into DoD and other federal agencies, a market that competitors including OpenAI, Google and SpaceX-adjacent contractors can continue to pursue without this specific restriction. It matters most for Anthropic's federal revenue pipeline and comes as the company reportedly heads toward an IPO, where any durable exclusion from a major government buyer is a legitimate line item for investors to probe. The dissent and Anthropic's ability to seek further appeal (en banc or Supreme Court) mean this is not necessarily final, so treat it as a current-state fact rather than a permanent one.

The coverage's framing around the IPO and "national security precedent" is speculative extrapolation, not something the ruling itself establishes; the court addressed one designation on due process and free speech grounds, not a broad verdict on AI safety policy. No link to the actual opinion is provided in the reporting, and there is no docket number or effective date given, so some claimed specifics cannot be independently verified here. The framing also risks overstating novelty: the underlying dispute and one denial of a stay were already public, so this is a continuation, not a fresh shock.

1. 01Whether Anthropic pursues en banc rehearing or a Supreme Court appeal, and the timeline for that decision
2. 02Any disclosure of federal/DoD revenue exposure in Anthropic's IPO filings (S-1 or equivalent) that quantifies the impact of this exclusion
3. 03Whether OpenAI, Google, or other competitors publicly announce new DoD contracts or expanded federal deployments that fill the gap left by Claude's exclusion
4. 04The text of the actual majority and dissenting opinions once published, to confirm the specific legal grounds and scope of the upheld designation