Federal Judge Blocks Pentagon Blacklist of Anthropic, Declares Designation Illegal

U.S. District Judge Rita Lin ruled that the Department of Defense's decision to label AI startup Anthropic as a national‑security supply‑chain risk was illegal and baseless. The judge found the move violated the First Amendment and was retaliatory, overturning the Pentagon's blacklist. Anthropic hailed the decision as a win for AI firms facing government scrutiny.

A California federal judge has struck down the Pentagon's attempt to blacklist Anthropic, the maker of the Claude AI model. U.S. District Judge Rita Lin, appointed by President Joe Biden, issued a 59‑page order finding that the Department of Defense exceeded its authority by designating the company a national‑security supply‑chain risk and that the action violated the First Amendment, describing it as retaliatory .

The ruling follows Anthropic's lawsuit alleging that Defense Secretary Pete Hegseth improperly used the supply‑chain risk label to punish the firm for its AI safety positions. The judge concluded that the "empty invocation of national security" could not serve as a "blank check" to punish the company, and ordered the removal of the blacklist status.

Anthropic's CEO Dario Amodei welcomed the decision, emphasizing that the ruling protects innovation and sets a precedent for how the government can engage with AI developers. The company's spokesperson told CNBC the court's finding was a "welcome" affirmation that the DoD's designation was unlawful.

Analysts note that the decision may reshape how the Department of Defense approaches partnerships with AI firms, potentially slowing future procurement negotiations while prompting clearer guidelines for security assessments. Stakeholders will watch for any appeal by the DoD and for how the ruling influences other AI companies facing similar government scrutiny.