AI Chat: ChatGPT, AI News, Artificial Intelligence, OpenAI, Machine Learning Anthropic's Mythos Found Millions of Security Vulnerabilities
Apr 7, 2026
They unpack Anthropic's Project Glasswing and the Claude Mythos Preview model aimed at hunting critical software flaws. They highlight claims that the model found thousands of old zero-day vulnerabilities and discuss the limited, non-public rollout to major tech partners. The conversation covers partnerships, a $100 million remediation pledge, leaks and naming drama, and the dilemma of global release versus misuse risk.
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Model Found Millions Of Longstanding Vulnerabilities
- Anthropic's Project Glasswing uses the Claude Mythos Preview to scan code and uncovered thousands of zero-day vulnerabilities, many critical and decades old.
- The model found bugs in widely used codebases, prompting Anthropic to restrict public release until fixes are deployed by partner security teams.
Do Prerelease Security Sweeps With Major Partners
- Use advanced internal testing with top security partners before releasing highly capable models publicly.
- Anthropic is distributing Mythos to Amazon, Microsoft, Linux Foundation, CrowdStrike and others to find and fix vulnerabilities ahead of any wider launch.
Public Release Could Trigger Mass Exploits
- Anthropic believes releasing Mythos publicly could rapidly enable mass exploitation because it makes finding exploits trivial.
- That risk motivated a $100M pledge in credits to incentivize companies to patch before broader availability.