Rigetti Computing said it has demonstrated what it calls the industry’s largest multi-chip quantum computer, achieving a 99.5% median two-qubit gate fidelity on a modular 36-qubit system built from four chiplets. The result cuts the company’s two-qubit gate error rate in half compared with its previous best on the 84-qubit single-chip Ankaa-3 platform. The milestone meets Rigetti’s mid-year performance goal and, according to the company, positions it to unveil a 100-plus-qubit system at a full launch scheduled for 15 August 2025. Higher gate fidelities and lower error rates are considered critical for scaling quantum processors to commercially useful workloads.