A federal appeals court declines to block the Pentagon’s blacklisting of Anthropic, an artificial intelligence company. In a divided decision, the court allows the Defense Department’s designation—described as a national security or supply chain risk—to stand, rejecting Anthropic’s legal challenge.
The rulings, reported by multiple outlets, come from the U.S. Court of Appeals for the D.C. Circuit. They specify that the decision bars the Pentagon and its contractors from using Anthropic’s Claude AI models. Several sources emphasize that the court found the Pentagon’s evidence sufficient to support its risk determination.
While headlines differ in wording—some describe the designation as a “blacklist” while others call it a “supply chain” or “national security” risk—the central dispute is consistent across coverage. Anthropic argues the designation violates its rights, and the company seeks to overturn it. The government and the court disagree, with the majority siding with the Trump administration. The decision is reported as 2–1, indicating a dissenting judge or judges.
