President Trump orders ALL Federal agencies in the US Government to immediately stop using Anthropic's technology.

President Trump has issued a sweeping executive order requiring all federal agencies to immediately halt the use of Anthropic's AI technology, escalating a conflict reportedly triggered by a Department of Defense ultimatum. The directive, announced on Truth Social, accuses Anthropic of jeopardizing national security by attempting to coerce the military and placing corporate terms of service above the Constitution. Defense Secretary Pete Hegseth concurrently listed Anthropic as a national security supply chain risk, banning military contractors from engaging with the company. The War Department and similar agencies have been granted a six-month transition period to find alternative providers.

This unprecedented federal ban stems from a dispute over two unspecified AI 'guardrails' that Anthropic reportedly refused to remove for the DoD. Trump framed the conflict as a battle for sovereignty against 'radical-left' tech executives, asserting that only elected officials should control military fate. In response, OpenAI CEO Sam Altman publicly supported Anthropic, stating he 'fundamentally trusts them as a company,' and approximately 70 OpenAI employees signed an open letter of solidarity titled 'We Will Not Be Divided.' The move signals a major fracture between the U.S. government and a leading AI lab, potentially reshaping the defense tech landscape and forcing a rapid, complex migration of AI systems across federal operations.