Anthropic says its Claude Mythos Preview model can build working exploits targeting known vulnerabilities within hours, or even minutes.
Announced in early April and promoted as the most capable AI frontier model, Mythos right from the start raised fears regarding its ability to supercharge attacks.
In April and May, Anthropic touted its ability to find vulnerabilities, including 271 Firefox flaws and thousands of severe security defects across over 1,000 open source software (OSS) projects.
Now, the company says its most advanced model can also weaponize these discoveries, demonstrating that the surge in AI use in cyberattacks increases the threats faced by organizations in the patch gap.
Put to the test, Claude Mythos Preview delivered 16 working exploits targeting Firefox and Windows within hours.












