EventPolicyJune 13, 2026
US govt directs Anthropic to restrict access to Claude Fable 5, Mythos 5

The US government directed Anthropic to ban access to Claude Fable 5 and Claude Mythos 5 for non-US citizens and organizations, citing vulnerability to jailbreaks. Notably, researcher Andrej Karpathy, a green card holder, is also affected.
Featured · Andrej Karpathy
4 sources
BREAKING 🔥: US government directed Anthropic to ban access to Claude Fable 5 and Claude Mythos 5 to...x.com
Claude Fable Blocked - 11 Quiet Details on What’s Nextyoutube.com
Andrej Karpathy is an EB-1 extraordinary ability green card recipient, not a US citizen. Thus under these new restrictions he is not permitted to use, or work on, Mythos 5 or Fable 5 or really any advanced ai models as of 5:21pm tonight.reddit.com