US Commerce Dept orders Anthropic to halt Fable 5, Mythos 5 exports

The US Commerce Department on June 12, 2026 issued an export control directive ordering Anthropic to cut off foreign nationals' access to its most advanced AI models, "Claude Fable 5" and "Claude Mythos 5," prompting the company to disable both models for users worldwide the same day. The directive cites national security concerns, reflecting worries that the technology could be diverted to military or intelligence users in "countries of concern" such as China and Russia. It is described as the first case in which export controls have been applied to frontier AI models themselves, following semiconductors. (Reuters)