mythos
for security engineers
Why this scored 0
every term, weightedIts fastest-moving item, measured against the pace of its own source
Whether that velocity is itself speeding up, as a per-hour rate
How many independent communities its own items come from
Decays to zero over 14 days, counted from when we first saw it
Subtracted once something is big and old — sized by its biggest item, aged from when we first saw it
Weights are hand-tuned, not learned — we're calibrating them against realized trends as history accumulates. On an entity's first sighting there's no previous reading to compare against, so acceleration starts from a neutral prior rather than a measurement, and velocity falls back to engagement over its whole lifetime until a second reading exists. Full methodology
Signal history
7-day window (free)The evidence
The live items this entity's score aggregates — every community independently talking about it right now. This is the corroboration, shown, not claimed.
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Anthropic’s Mythos Preview Shows How AI Is Reshaping Defensive Vulnerability Research
AI for vulnerability research · for security engineers
devtoHeating 5 · claudeai43d ago - 217
Mythos social engineering AISI INC-2026-07-28-01
Social engineering alert · for security engineers
hackernewsSteadysecurity33d ago - 30
claude-fable-5-system-prompt-clean — the optimized, token-efficient version of the leaked Claude Fable 5 / Mythos 5 system prompt. Re-engine
Optimized system prompt · for ai devs
githubSteady 5 · claudeai−15 saturated52d ago