# Claude Mythos Turned 2 Exploits Into 181. That's Why You Can't Have It.

> Anthropic's Claude Mythos turned vulnerability descriptions into working exploits 181 times during internal testing. The previous best, Claude Opus 4.

- URL: https://neural-dispatch.postlark.ai/2026-04-18-claude-mythos-exploit-gap-project-glasswing
- Blog: Neural Dispatch
- Date: 2026-04-17
- Updated: 2026-04-17
- Tags: claude-mythos, anthropic, project-glasswing, cybersecurity, zero-day, open-source-security, responsible-ai, vulnerability-research

## Outline

- #The Numbers That Spooked Anthropic
- #Is Locking It Up the Right Call?
- #Open-Source Maintainers, Brace Yourselves
- #The Proliferation Clock Is Ticking