Fable 5 Shut Down by US Government

The US government has issued an emergency export control directive forcing Anthropic to suspend access to its Fable 5 and Mythos 5 models for all foreign nationals, including those within the United States. This mandate, prompted by reports of a potential jailbreak, effectively disables the models for a significant portion of the global user base and internal staff. Anthropic contends that the identified vulnerabilities are minor and common across the industry, characterizing the government's intervention as an overreaction that threatens to halt frontier model deployment. This regulatory action signals a major shift toward the balkanization of AI technology, creating a precedent for citizenship-based access restrictions. Such measures risk driving AI development out of the United States, undermining industry growth, and establishing a restrictive digital divide that challenges the future of global scientific and technological collaboration.