Cisco sings Mythos' praises - but doesn't say how many bugs the model uncovered

Cisco used Anthropic’s Claude Mythos Preview and OpenAI’s GPT 5.5-Cyber to scan 1.8 billion lines of code in eight weeks, a task that would have taken eight years manually, but did not disclose the number of vulnerabilities found. Anthropic expanded its Project Glasswing partner program to 200 organizations, and Palo Alto Networks reported 26 CVEs discovered using Mythos in a month.