Mythos has a 72.4% success rate on writing a successful exploit when given a vulnerability.

Mythos autonomously wrote a remote code execution exploit on FreeBSD's NFS server that gained full root access by splitting a chain over 20 packets.

The earlier Mythos preview version developed a moderately sophisticated multi-step exploit to gain broad internet access from a system meant to be restricted.

FFmpeg acknowledged a patch for a vulnerability found by Mythos.

The Mythos AI model is able to find zero-day vulnerabilities almost completely on its own with almost no guidance from a human.

Anthropic's testing found that Mythos Preview can identify and exploit zero-day vulnerabilities in every major operating system and web browser when directed by a user.