Claude Mythos Preview Is a Warning Shot for Every Security Team

Claude Mythos Preview Is a Warning Shot for Every Security Team Anthropic just said the quiet part out loud. Its new gated model, Claude Mythos Preview , is strong enough at vulnerability research and exploit development that Anthropic decided not to release it for general access. Instead, it wrapped the model inside Project Glasswing , an invitation-only defensive security program with launch partners including AWS, Cisco, CrowdStrike, Google, Microsoft, NVIDIA, Palo Alto Networks, JPMorganChase, Apple, Broadcom, and the Linux Foundation. That alone should get your attention. Frontier labs love shipping. They do not voluntarily keep flagships behind a fence. And yes, Anthropic looks nervous. What Anthropic Actually Announced Across Anthropic’s official Glasswing launch post , the Project Glasswing page , the Frontier Red Team’s technical write-up , the system card , the alignment risk update , and Anthropic’s own platform release notes , the picture is consistent: Mythos Preview is no