New Delhi, March 27 -- A federal judge in San Francisco has granted a preliminary injunction in favour of artificial intelligence company Anthropic, marking a significant early victory in its legal confrontation with the Trump administration and the Pentagon.

The ruling temporarily halts US government actions that had effectively barred the federal use of AI firm Anthropic, as a broader legal contest unfolds.

Judge Rita Lin issued the decision following a contentious hearing on Tuesday, during which lawyers for both Anthropic and the US government presented arguments over the legality of the company's designation as a national security risk. The injunction pauses the enforcement of restrictions that had prohibited federal agencies from ...