Putting a word of caution against the increasing capabilities of artificial intelligence (AI) models, Logan Graham, head of Frontier Red Team at Anthropic, said that models like Claude Mythos won’t stay rare or in safe hands forever.
On X, Graham informed that Claude Mythos Preview has helped find many thousands of “estimated” highly critical severity vulnerabilities in security systems of Anthropic’s partners under Project Glasswing.
“Within a year, Mythos will probably look quite dumb (relative to other new models). And others may release openly available or unguardrailed models of Mythos-level capabilities. We started Project Glasswing because capabilities like Mythos Preview’s won’t stay rare, or stay in careful hands,” said Graham.
Claude Mythos is a frontier AI model developed by Anthropic AI, claimed to have superior capabilities than existing AI models, thereby posing cybersecurity risks for institutions and businesses.
Anthropic has not released Mythos for general use and rather unveiled a preview version selectively available to tech giants and institutions under Project Glasswing, to “find and fix vulnerabilities or weaknesses in their foundational systems.”
A lot of people have been wondering about Mythos, Glasswing, and the vulns we / our partners are fixing. Today, I’m excited for us to start sharing more. (For context, I lead Glasswing @AnthropicAI.)
Two independent evaluations this week—from XBOW and the UK AISI—confirm what… https://t.co/WhIAjHcoQ5
— Logan Graham (@logangraham) May 13, 2026
Following the unveiling of Claude Mythos Preview model, several governments including U.S. U.K, India and Singapore have issued advisories to their respective banking institutions and businesses to overhaul their security management.
Graham, who heads the Frontier Red Team at Anthropic, informed that Claude Mythos has become the first AI model to have successfully passed UK’s AI Security Institute(AISI)’s cooling tower cyber ranges test. Additionally, an independent assessment by XBOW has also shown a step-change in autonomous cyber capabilities of AI models.
“I don’t share this to boost Mythos. In fact, this is not about Mythos. It’s about preparing for the coming world of models being better, faster, cheaper, and more creative than some of the best human experts at dual use capabilities,” added Graham.
Also Read: SEBI Flags Claude Mythos in Advisory, Asks Indian Markets to Level-up Defense



