When Export Controls Met AI: How Anthropic’s Newest Models Got Shut Down Overnight
Reading Time: 5 minutesThe Trump administration invoked national security export controls to force Anthropic to block access to its Fable 5 and Mythos 5 models for all foreign nationals — including US-based foreign employees — marking what insiders call the first time such controls have been applied to an AI model. With no publicly explained legal basis, the unprecedented order has sent shockwaves through the AI industry, raising urgent questions about regulatory predictability for developers worldwide.