US Government directive to suspend access to Fable 5 and Mythos 5

The US government has issued an export control directive suspending access to Anthropic's Fable 5 and Mythos 5 models for all foreign nationals, citing national security concerns over a potential jailbreak method. Anthropic stated that the specific vulnerability demonstrated to the government is minor and commonly found in other publicly available models, and that it conducted extensive red-teaming before launch showing Fable's safeguards are more effective than previously deployed models.