Federal Judge Rules Pentagon's Actions Against Anthropic AI Illegal, Unconstitutional

U.S. District Judge Rita Lin ruled Thursday night that the Department of Defense’s designation of AI firm Anthropic as a supply‑chain risk was illegal and baseless, ordering the Pentagon to cease the punitive measures. The decision follows a month‑long dispute that began in February when President Donald Trump and Defense Secretary Pete Hegseth accused Anthropic of threatening national security, labeling the company a risk to the supply chain. Anthropic’s chief executive, Dario Amodei, refused to back down, citing concerns that the company’s technology could be used for mass surveillance or autonomous armed drones.

Lin’s 59‑page order states that the government’s actions were “based on a desire to make a public example out of Anthropic for its ‘arrogance’ in criticizing the government, not based on any articulable basis to believe that Anthropic would actually sabotage its model.” The judge rejected the Pentagon’s invocation of federal statutes and constitutional provisions that would allow it to impose sweeping penalties solely on the basis of Anthropic’s criticism of the administration’s views. The ruling also temporarily blocked the Pentagon from labeling the company a supply‑chain risk and from enforcing a Trump‑issued social‑media directive that ordered all federal agencies to stop using Anthropic’s chatbot Claude.

The case was filed in March by Anthropic, which sued the Pentagon over what it called an “unlawful campaign of retaliation” for refusing to allow unrestricted military use of its technology. The legal battle has drawn attention to the broader debate over how artificial intelligence can be used in warfare and mass surveillance. In a related development, OpenAI, the maker of ChatGPT, struck a deal with the Pentagon just hours after the government punished Anthropic, underscoring the competitive and strategic stakes for AI firms.

An Anthropic spokesperson welcomed the ruling, saying, “We remain focused on working productively with the government to harness AI for our national security so all Americans benefit from this technology.” The White House has yet to respond to a request for comment.

In a hearing on July 30, Lin expressed concern that the government’s position was “really troubling” and “at odds with the First Amendment.” She noted that the record had “gotten worse for the government” over time. Department of Justice lawyers argued that the nature of AI models is “so staggeringly enormous and opaque” that the Defense Department cannot evaluate them the same way it would a physical piece of hardware. Anthropic lawyer Michael Mongan warned that the government’s actions “profoundly harm Anthropic” and threaten to chill speech and debate on an important issue.

The Pentagon is expected to appeal the ruling, and Anthropic has a separate, narrower case pending in the federal appeals court in Washington, D.C., involving another rule the defense department is using to declare the company a supply‑chain risk. Both Anthropic and OpenAI are also preparing for highly anticipated initial public offerings, adding commercial pressure to the legal and policy debate.

The judge’s decision marks the first time a federal court has found the Pentagon’s supply‑chain risk designation against an AI company unlawful, setting a precedent that could influence how the government evaluates emerging technologies in the future. The outcome will likely shape the Pentagon’s approach to AI procurement and the broader regulatory environment for artificial intelligence in national security contexts.