Updated March 26, 2026 – AP: “A federal judge has ruled in favor of artificial intelligence company Anthropic in temporarily blocking the Pentagon from labeling the company as a supply chain risk. U.S. District Judge Rita Lin on Thursday said she was also blocking President Donald Trump’s directive ordering all federal agencies to stop using Anthropic and its chatbot Claude. Lin said the “broad punitive measures” taken against the AI company by the Trump administration and Defense Secretary Pete Hegseth appeared arbitrary and capricious could “cripple Anthropic,” particularly Hegseth’s use of a rare military authority that’s typically directed at foreign adversaries.
ChatGPTIsEatingtheWorld: Anthropic filed 2 lawsuits against the U.S. Department of War and Peter B. Hegseth today. D.C. Circuit case First, Anthropic filed a petition in the D.C. Circuit to challenge the U.S. Department of War’s designation of Anthropic as a supply chain risk. Then, Anthropic filed a lawsuit in the N.D. California challenging the legality of the Department of War’s action under the Administrative Procedures Act as “arbitrary and capricious,” as as well as a First Amendment violation penalizing Anthropic’s views, among other claims.
- The legal documents available here.
- See also Court Listerner document library on this case.
- See also Prof. Edward Lee – UPDATE: Anthropic v. US Dep’t of War is now on a fast track. Anthropic filed a motion for preliminary injunction. Judge Lin has already been assigned to the case. Status conference tomorrow, 3/10/2026 03:00 PM in San Francisco, – Videoconference Only before Judge Rita F. Lin. Plus Jeff Dean of Google and a bunch of other AI researchers at both Google and OpenAI are asking leave to file an amici brief in support of Anthropic. In their personal capacities. UPDATE 2: Here is the Zoom link info from Judge Lin’s webpage: Please click the link below to join webinars (public hearings). If you are a case participant, you will join as an attendee, then you will be brought into the proceeding by court staff. https://lnkd.in/gnJ545c3; Webinar ID: 161 548 2105; Password: 315725
- The cover story in TIME about the fight between Anthropic and the Pentagon and what it portends for the future. The reporters “spent three days interviewing executives, engineers, product heads, and safety leaders” at Anthropic to “figure out how what was once the eccentric little brother in the race for artificial intelligence has suddenly become the pacesetter.”
