Fortune Reports Anthropic Claude Mythos 'Too Dangerous to Release' — First Public Acknowledgment of Model Exceeding Safety Thresholds for General Availability

Fortune·high signal

Fortune published a deep analysis of Anthropic's decision not to release Claude Mythos publicly, calling it the first time a major AI lab has publicly deemed a production model too high-risk for general availability. The model identified thousands of zero-day vulnerabilities across every major OS and browser. Officials believe Mythos could 'bring down a Fortune 100 company' or 'penetrate vital national defense systems.' Access is restricted to ~40 organizations through Project Glasswing for defensive cybersecurity only.