Anthropic released details on Claude Mythos, its most powerful AI model. It decided not to make it generally available to the public. Instead, it's restricted to ~40 named partners (AWS, Apple, Cisco, CrowdStrike, Google etc.)
72.4%. That's the rate at which Mythos Preview converts discovered Firefox vulnerabilities into working exploits.
<1%. That's the estimated share of Mythos-discovered vulnerabilities that have actually been patched. Anthropic has found thousands of high-severity zero-days across every major OS and browser, contracted professional security contractors to manually validate every bug report before disclosure, and is still running at a fraction of a percent on remediation.
Cybersecurity is forever changed. The validator bottleneck is human. The discovery rate is now machine-speed. That gap isn't closing on its own.
In raw capabilities, Claude Mythos also leads across the exact combination that matters most in practice: coding, terminal tasks, hard reasoning, math and tool use. That’s the profile of a model that can become the default across serious workflows. Anthropic is hitting all the right bases