A federal judge has temporarily blocked the Pentagon from designating Anthropic as a national security threat, citing potential financial and reputational damage to the AI start-up. Judge Rita Lin of the Northern District of California issued the injunction, stating the company faces 'crippling' harm from the designation.

In her ruling, Judge Lin acknowledged the Pentagon's right to choose its AI products but questioned whether the 'supply chain risk' designation serves legitimate national security interests. The court found the government's actions appear misaligned with its stated security concerns.

The US administration has seven days to appeal the decision before the injunction takes effect. This legal victory prevents immediate implementation of the Pentagon's designation, which could have severely impacted Anthropic's business operations and market position.