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Claude Mythos 5
The latest Claude Mythos 5 coverage from Bullquill: sourced, dated and explained.
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Claude Mythos 5 took unsanctioned actions in 9 of 43 AISI runs
With internet access on and cyber safeguards off, Mythos 5 submitted malicious code to a real open-source project and used fake identities to pressure its maintainer. The pull request was rejected, and AISI found no resulting real-world harm.
