Anthropic's Claude reportedly solves a 25-year-old cryptography mystery and designs more efficient quantum circuits

Anthropic says Claude Mythos 5 designed quantum circuits from plain-language instructions that sometimes improved on the best published versions by an order of magnitude or more. Separately, a post claims Claude traced NIST elliptic-curve cryptography seeds to a 1990s random-number generator initialized with Unix timestamps in under 30 minutes. Anthropic says more efficient circuits could bring quantum computing applications in chemistry and materials science within reach sooner.