David Sacks: Anthropic's Fable model was found to have security vulnerabilities that were not patched, forcing the government to regulate it.

CoinFeed reported on June 14 that David Sacks, co-chair of the U.S. President's Council of Advisors on Science and Technology, shared his views on Anthropic's suspension of foreign citizens' access to the Claude Fable 5 and Mythos 5 models in a tweet, based on discussions with people both inside and outside the government. Earlier this week, Anthropic publicly released its Mythos-level model under the commercial name "Fable." "Fable" is a Mythos model with added safeguards. A partner highly trusted by both Anthropic and the U.S. government discovered a way to bypass these safeguards while testing "Fable." Administrators demanded a fix for the vulnerability or the removal of the model, but this was refused.