Researchers who have tested Anthropic’s Mythos and OpenAI’s GPT-5.5 say their hacking capabilities are a “game-changer.”

Anthropic aims to make its Mythos-class AI models widely available after the model found thousands of zero-day vulnerabilities in critical open-source software.

Researchers who have tested Anthropic’s Mythos and OpenAI’s GPT-5.5 say their hacking capabilities are a “game-changer.”