Appeals court denies Anthropic’s bid to pause Pentagon’s supply-chain risk label

A federal appeals court has denied Anthropic PBC's emergency request to pause the Pentagon's designation of the AI company as a supply-chain risk, leaving it in legal limbo amid conflicting judicial rulings.^[1] This decision, issued by the D.C. Circuit, contrasts with a California judge's earlier block on broader government restrictions against Anthropic's Claude AI model, creating uncertainty over how the U.S. military can use the technology.^[1][search:1]

The ruling came after Anthropic argued that the label had already inflicted financial losses and reputational damage, potentially harming its broader business operations.^[1] Company lawyers sought an injunction to halt the designation pending a full merits review, warning of irreparable harm. However, the three-judge panel sided with the government in a concise four-page order, stating that the "equitable balance here cuts in favor of the government." They weighed the contained financial risk to Anthropic against the Department of Defense's need to secure vital AI technology during an active military conflict.^[1]

Background to the dispute traces back to February 2026, when Anthropic CEO Dario Amodei informed Defense Secretary Pete Hegseth that the company would not permit the Pentagon to use Claude for developing autonomous weapons or conducting mass surveillance of U.S. citizens.^[1] This stance prompted Hegseth and President Trump to label Anthropic a supply-chain risk, escalating a nearly two-month standoff between the AI firm and the military.^[1] As reported by Bloomberg, the appeals court's refusal to pause the label keeps it intact for now, even as the California ruling blocks plans for a wider ban on Anthropic's tech.[search:1]

Anthropic expressed cautious optimism in response. A spokesperson noted the company is "grateful the court recognized these issues need to be resolved quickly and remain confident the courts will ultimately agree that these supply chain designations were unlawful."^[1] The judges acknowledged likely irreparable harm to Anthropic and called for an expedited decision on the case's merits, signaling faster resolution ahead.^[1] The Department of Defense has not yet commented publicly on the ruling.^[1]

This legal tug-of-war raises stakes for national security and AI innovation, as the U.S. military relies heavily on advanced models like Claude amid ongoing conflicts. The conflicting decisions—D.C. upholding the risk label while California halts broader bans—leave procurement rules unclear, potentially disrupting defense contracts and forcing agencies to navigate a patchwork of restrictions.[search:1]^[1] Anthropic, a key player in safe AI development, faces ongoing business fallout, including lost revenue from government clients wary of the designation.^[1]

What happens next remains uncertain but urgent. With the appeals court pushing for speed, a merits decision could clarify Anthropic's status within weeks or months, determining whether the Pentagon can fully integrate Claude or must seek alternatives.^[1] Industry observers, as covered by Wired, highlight how this limbo exemplifies tensions between tech firms' ethical boundaries and government demands for AI in wartime applications.[search:1] For Anthropic, the outcome will shape not just its defense market access but its reputation in a sector increasingly scrutinized for supply-chain vulnerabilities.