First reported by Hacker News
US Government Orders Anthropic to Suspend Fable 5 and Mythos 5 Access Under National Security Directive
Cybersecurity Experts Urge US to Lift Export Ban on Anthropic's Frontier AI Models
By
Kevin Poireault
4d ago· 4 min readenNews
Summary
Over 50 cybersecurity professionals have publicly urged the US government to lift an export control ban on Anthropic's latest frontier AI models, Mythos 5 and Fable 5. The Trump administration issued a directive suspending access to these models by any foreign national, prompting Anthropic to suspend access for all customers to ensure compliance. The cybersecurity experts argue the ban hinders AI safety research and global security collaboration.
Source
Key quotes
· 3 pulledOver 50 cybersecurity professionals have publicly requested the US government lift the ban on access to Mythos 5 and Fable 5, the latest frontier large language models (LLMs) released by AI company Anthropic.
On June 12, Anthropic announced that the US government had issued an export control directive to suspend all access to Fable 5 and Mythos 5, released just a few days earlier, by any foreign national.
This decision prompted the AI company to suspend access to both models for all customers to ensure compliance with the directive.
Access to two Anthropic large language models, Mythos 5 and Fable 5, has effectively been banned to any non-US nationals by the Trump administration

