The Trump administration on Friday ordered all U.S. agencies to stop using Anthropic's artificial intelligence technology and imposed other major penalties, culminating an unusually public clash between the government and the company over AI safety. President Donald Trump, Defense Secretary Pete Hegseth and other officials took to social media to chastise Anthropic for failing to allow the military unrestricted use of its AI technology by a Friday deadline, accusing it of endangering national security after CEO Dario Amodei refused to back down over concerns the company's products could be used in ways that would violate its safeguards. "We don't need it, we don't want it, and will not do business with them again!" Trump said on social media.