Claude Mythos 5 in Claude Security (Public Beta)

Enterprise customers can point Claude at a GitHub repository and get back a list of security flaws with suggested fixes, using Anthropic's security-specialized model.

Details

Scans a connected GitHub repository, tracing how data moves across files and how components interact, then returns each finding with a CWE category (the industry's standard label for a type of flaw), a confidence rating, a severity rating, and a suggested fix
Runs on Claude Mythos 5, Anthropic's security-specialized model, with no separate model access to request
Billed as standard token usage on the existing Enterprise plan rather than as a paid add-on
Admins switch it on in the admin console, and people use it at claude.ai/security
Anthropic also committed $35 million in Claude credits to open-source security organizations through a new Defender Advantage Fund

Best for

security reviews of a codebase you own, where you want flaws found and patched rather than only flagged

When to use it

you are on Claude Enterprise and a repository has never had a proper security pass

Who benefits

security engineers and engineering leads at companies on Claude Enterprise

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Details

Best for

When to use it

Who benefits

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Staying informed is great. Staying ahead is better.