Mythos: An AI tool too powerful for public release

Don’t have an account? Sign up > Try our antivirus with a free, full-featured 14-day trial Protect your team’s devices and data – no IT skills needed Explore award-winning endpoint security for your business Anthropic’s most capable model to date, Claude Mythos Preview (aka Mythos), has been described as a “step change” in AI performance, especially on cybersecurity tasks. Anthropic tried to keep Mythos a secret until a few weeks ago, when a data leak revealed the existence of what the company said was its most powerful artificial intelligence to date. The models is seen as both a powerful defensive tool, and, potentially, a serious offensive cyberweapon. For that reason, the company is sharply limiting access and signaling it does not plan to release it broadly to the market right now. Its reported ability to autonomously find and even chain software vulnerabilities at scale sit at the

Source: https://www.malwarebytes.com/blog/news/2026/04/mythos-an-ai-tool-too-powerful-for-public-release