Anthropic says Claude designed quantum circuits that beat the best published designs

Anthropic says Claude, given plain-language specifications and an automated evaluator, found quantum circuit designs for eight computational primitives that use fewer qubits and gates than the best published designs.

In one case, a reversible divsteps modular inversion design used 17x fewer gates than the smallest previous design, at 12% more qubits. Anthropic says the work could bring practical quantum computers closer.