Working largely on its own, Claude designed quantum circuits that improve on the best published versions, in some cases by an order of magnitude or more.

Claude Mythos 5 beat the best previously published quantum-circuit designs on eight computational primitives, including a Reed-Solomon decoder for ...

Anthropic said Claude improved eight quantum circuit designs, including reductions in qubits and gates, with some gains reaching an order of magnitude.

In a research post published October 16, 2026, Anthropic reported that its Claude Mythos 5 model, working in a closed loop ...