Claude Mythos 5.2 redisCOVERS 89.6% of known CVEs in Anthropic's internal eval
minchoi · x · 2026-11-10
Anthropic's internal CVE Rediscovery evaluation (October 2026 run against 1,829 CVEs) shows Mythos 5.2 independently rediscovered 89.6% of known vulnerabilities and found confirmed bugs other frontier models missed. The accuracy-vs-cost chart shows it beats Mythos 5.1 and Opus 5.5 at every effort level.
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