Federal judge sides with Anthropic in first round of standoff with Pentagon

A federal judge in California granted Anthropic a temporary injunction blocking the Pentagon's punitive measures against the AI company, handing the firm a preliminary victory in its legal challenge to the Trump administration. Anthropic refused to allow the Department of Defense to use its Claude AI model in autonomous weapons systems, prompting the Pentagon to declare the company a supply chain risk and order federal agencies to stop using its technology. Judge Rita Lin's ruling pauses those government restrictions while the Northern District Court of California hears the company's full case, in which Anthropic argues the Pentagon's actions violated its First Amendment rights. The standoff reflects a broader clash between AI companies seeking to limit military applications of their technology and government efforts to expand access to advanced AI for defense purposes. The injunction is temporary, and the underlying case will determine whether Anthropic's refusal to support weaponized AI deployment is protected speech or whether the Trump administration can enforce supply chain restrictions against the firm.