U.S. President Donald Trump, Secretary of Defense Pete Hegseth behind, speaks to reporters aboard Air Force One on a flight from Dover, Delaware, to Miami, Florida, U.S., March 7, 2026.
Kevin Lamarque | Reuters
Anthropic filed a lawsuit against federal agencies and their leaders on Monday after the company was blacklisted by the Trump administration and labeled a threat to U.S. national security.
The artificial intelligence startup is the first American company to be designated as a supply chain risk, which has historically been reserved for foreign adversaries. It will require require defense vendors and contractors to certify that they don’t use Anthropic’s models in their work with the Pentagon.
President Donald Trump also shared a post on social media last month directing federal agencies to “immediately cease” all use of Antrhopic’s technology.
The company said in the lawsuit that these actions are “unprecedented and unlawful,” and that they are “harming Anthropic irreparably.”
“Anthropic’s contracts with the federal government are already being canceled. Current and future contracts with private parties are also in doubt, jeopardizing hundreds of millions of dollars in the near-term,” the filing says. “On top of those immediate economic harms, Anthropic’s reputation and core First Amendment freedoms are under attack. Absent judicial relief, those harms will only compound in the weeks and months ahead.”
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