Anthropic said the US government issued an export control directive, citing national security authorities, barring access to Fable 5 and Mythos 5 by foreign nationals, after officials said they had found a way to jailbreak Fable 5's safeguards. Anthropic said the net effect was that it had to disable both models for all customers to comply, while other Claude models stayed available. Anthropic disputed the rationale, arguing the demonstrated vulnerabilities were minor and that the standard applied industry-wide would halt new frontier deployments.
It is a case of a government using export controls to pull a deployed frontier model over a cyber-safeguard bypass.
Key facts
As stated in the sources, with where to find them.
- The directive barred access by any foreign national inside or outside the US; Anthropic disabled Fable 5 and Mythos 5 for all customers.Anthropic statement
- Fortune reports the directive came from the Commerce Department and was received at 5:21 p.m. ET on Friday.Fortune article
- The stated trigger was a claimed method of jailbreaking Fable 5; Anthropic said the demonstrated vulnerabilities were minor and findable with other public models.Anthropic statement
Findings that cite this record
No tracked finding cites this record yet.
Key questions this bears on
- Is AI shifting the balance between finding and fixing vulnerabilities?Discovery is ahead. AI finds real vulnerabilities faster than they are fixed, and simple checks overstate how often AI patches work.