The U.S. Commerce Department ordered Anthropic on June 12 to suspend access to its Fable 5 and Mythos 5 models for all foreign nationals, anywhere in the world.
Unable to filter users by nationality in real time, Anthropic pulled both models for every customer globally. The trigger was a reported jailbreak capable of unlocking Mythos’s offensive cybersecurity capabilities.
That action is the near-term story. The bigger one is what Anthropic CEO Dario Amodei said at a financial services event in May: there is a six-to-twelve-month window before Chinese AI reaches the same capability.
Once Chinese labs release comparable models as open source, export controls become irrelevant — weights are public, safety guardrails become optional, and no regulatory action claws them back.
Mythos Preview, announced April 8, autonomously wrote working exploits for thousands of zero-day vulnerabilities — including a 17-year-old remote code execution flaw in FreeBSD’s NFS server and a 27-year-old crash bug in OpenBSD.
