«There were 50 crash categories pre-discovered by Claude Opus 4.6. Mythos did not find these bugs. Ok, now it’s getting even more awkward. Not Firefox. Not found by Mythos. The bugs were handed off as starter material. The system card is explicit that the crashes were “discovered by Opus 4.6 in Firefox 147.”»
«Anthropic’s own language: “almost every successful run relies on the same two now-patched bugs.”»
So #Anthropic #Claude #Mythos' bug finding capability is mostly a myth.
h/t @BioSchweiz