Anthropic's zero day machine "Mythos" triggers hype, criticism

Anthropic claims its new, unreleased frontier model, dubbed “Mythos”,  is so powerful at identifying exploitable zero days in software that it can’t yet be publicly released – with capabilities that far outstrip its Opus 4.6 model. 

But not everyone is convinced of its claims, which lack comparison benchmarks, detail of the exploits, and data on the scale of human involvement in filtering through potential false positive vulnerabilities.