Pentagon's Anthropic ban overturned by federal court

The ruling marks a significant legal victory for Anthropic in its dispute with the U.S. government. The conflict began when the Defense Department approached Anthropic about bringing Claude to its internal platform GenAI.mil, but objected to a clause in the company's terms of use that restricts mass surveillance and autonomous weapons development. When Anthropic refused to change the wording, President Trump banned federal agencies from using its models, and Defense Secretary Pete Hegseth designated Anthropic as a supply chain risk, which also prohibited defense contractors from using Claude.

The court's decision highlighted several inconsistencies in the Pentagon's position. Not only did officials acknowledge that Anthropic lacked the alleged backdoor access, but the Defense Department had been using Claude since last March, and officials indicated Anthropic could be essential to national security shortly before the ban was announced. The court also noted that the Pentagon's AI usage policies were inconsistent with the stance it took in the lawsuit.

Anthropic welcomed the ruling, stating it remains focused on working productively with the government to harness AI for national security. However, the ban is not yet officially lifted, as a D.C. Circuit judge must also rule in favor of the company. The outcome could have broader implications for how the government engages with AI providers over acceptable-use policies, though the article does not speculate on this.