Rigetti Demonstrates Industry's Largest Multi-Chip Quantum Computer; Halves Two-Qubit Gate Error Rate

Core Insights - Rigetti Computing has achieved a mid-year performance milestone of 99.5% median two-qubit gate fidelity on its modular 36-qubit system, marking a 2x reduction in median two-qubit gate error rate compared to its previous best results on the 84-qubit Ankaa™-3 system [1] - The 36-qubit system, composed of four 9-qubit chiplets, is based on proprietary modular chip technology and is set to launch on August 15, 2025, with plans for a 100+ qubit chiplet-based system by the end of 2025 [1][2] - The company leverages superconducting qubits, which offer gate speeds over 1,000 times faster than other modalities, and has developed proprietary technology to enable scaling to higher qubit count systems [2] Company Overview - Rigetti Computing is a pioneer in full-stack quantum computing, operating quantum computers over the cloud since 2017 and serving various clients through its Rigetti Quantum Cloud Services platform [3] - The company began selling on-premises quantum computing systems in 2021, with qubit counts ranging from 24 to 84, and introduced the 9-qubit Novera™ QPU in 2023 to support R&D communities [3] - Rigetti has developed the industry's first multi-chip quantum processor for scalable systems and manufactures its chips in-house at Fab-1, the first dedicated quantum device manufacturing facility [3]