Unscarcity
Sign in for free: Preamble (PDF, ebook & audiobook) + Forum access + Direct purchases Sign In
US Government Forces Anthropic to Pull Fable 5 and Mythos 5 Over Alleged Jailbreak
Ep. 86 03:09

US Government Forces Anthropic to Pull Fable 5 and Mythos 5 Over Alleged Jailbreak

About This Episode


On June 12, 2026, Anthropic received a US export-control directive citing national security authorities and ordering it to suspend access to its two most capable models, Fable 5 and Mythos 5, for any foreign national. Because it cannot filter foreign users in real time, Anthropic disabled both models for every customer. The government cited a jailbreak method; Anthropic says the demonstration only surfaced a few previously known minor vulnerabilities and disputes that a narrow jailbreak justifies recalling a model used by hundreds of millions.

Our Take


A lab that spent weeks warning no one could act on a frontier-AI emergency just watched the government act on it overnight, by fiat and in the dark, exposing that we have raw national-security power over the most capable models but none of the transparent, verifiable process that would make that power legitimate.

Continue Reading on Unscarcity