> Anthropic’s Fable 5 Model Jailbroken Within Days
[AUTHOR: Bruce Schneier]
[DATE: 23/06/2026 11:03]
[LANGUAGE: EN]
Fable 5 is the supposed safe version of Anthropic’s Mythos Preview, with guardrails to ensure that it can’t be used to create cyberattacks.
Well, that restriction was bypassed within days.