A U.S. federal judge has invalidated the Pentagon's decision to designate artificial intelligence company Anthropic as a supply-chain risk, ruling that the move was unlawful retaliation rather than a legitimate national security measure. The decision by U.S. District Judge Rita Lin removes penalties that blocked Anthropic from certain federal contracts and military-related business. The ruling marks a significant development in an unusually public conflict over how advanced AI models may be used in warfare and surveillance.
A Landmark Ruling Against the Pentagon
Judge Lin concluded that the government acted illegally and arbitrarily by invoking national security to punish a company for its criticism and policy disagreements. She stated that empty invocations of national security are not a blank check to retaliate against government critics. The court also vacated the February 27 decision by Defense Secretary Pete Hegseth and lifted an additional measure that prevented military contractors or suppliers from doing business with Anthropic.
The ruling found that nine agencies, including the Pentagon, Treasury, State Department, and Department of Homeland Security, had improperly imposed sanctions on Anthropic. Lin affirmed that the Pentagon is not required to use Anthropic's models and may choose other vendors. A Pentagon spokesperson could not immediately be reached for comment, but the department is expected to appeal the decision.
Origins of the Dispute
The conflict emerged from a $200 million deal to use Anthropic's Claude models for military applications. Tensions rose after reports that the United States had used Claude in an operation to capture Venezuelan President Nicolás Maduro. Anthropic sought to place limits on deployments involving lethal autonomous weapons and mass surveillance, but Hegseth rejected any restrictions and insisted on all lawful use.
After negotiations collapsed in February, the Pentagon labeled Anthropic a supply-chain risk, a designation that blacklisted the company from federal business and drew widespread attention. Anthropic estimated that the decision could cost billions of dollars in lost revenue and cause significant reputational harm. The conflict intensified when OpenAI announced its own Pentagon agreement just hours later, leading to public criticism and internal fallout at OpenAI.
Legal Arguments and Judicial Response
In a 59-page ruling, Lin wrote that the government's broad measures were arbitrary, capricious, an abuse of discretion, and otherwise not in accordance with law. She noted that the government is currently discussing collaboration with Anthropic on its new model, Mythos, in sensitive contexts, which undermines any genuine fear that the company would sabotage its software. The judge said the Constitution and federal law do not allow sweeping penalties based principally on a company's critique of the administration's views.
Anthropic filed two lawsuits challenging the designation on First and Fifth Amendment grounds. The company argued that the government exceeded its authority and acted in retaliation for Anthropic's refusal to allow unrestricted military use of its technology. A separate case is still pending in the U.S. Court of Appeals for the District of Columbia, and this ruling does not end the broader legal fight.
Reaction and Implications
Anthropic spokesperson Danielle Cohen said the company welcomes the ruling that the supply-chain risk designation was unlawful. She added that Anthropic remains focused on working productively with the government to harness AI for national security. The White House did not immediately respond to a request for comment on the decision.
The ruling represents a major legal setback for the Trump administration's effort to restrict Anthropic's access to federal contracts and military suppliers. It also highlights the unresolved tension between national security authority and First Amendment protections in the rapidly evolving AI sector. As the government prepares to appeal and a related case continues, the outcome may shape how AI companies negotiate ethical limits with defense agencies while safeguarding their commercial interests.