US Defence Secretary Pete Hegseth stated that the Department of War had "kicked @AnthropicAI out of our building–forever" on Saturday, following a US government export control directive that restricted foreign access to Anthropic's AI models Fable 5 and Mythos 5 over national security concerns.

The Trump administration escalated its conflict with AI giant Anthropic by restricting foreign access to its advanced models over national security concerns after Anthropic refused to budge on its principles regarding the use of AI in warfare, specifically for mass domestic surveillance and autonomous weapons.