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

BERKELEY, Calif., July 16, 2025 -- Rigetti Computing, Inc. (Nasdaq: RGTI) (“Rigetti” or the “Company”), a pioneer in full-stack quantum-classical computing, today announced that it has achieved its mid-year performance milestone of 99.5% median two-qubit gate* fidelity on its modular 36-qubit system, a 2x reduction in median two-qubit gate error rate from Rigetti’s previous best results on its 84-qubit single chip Ankaa™-3 system. Composed of four 9-qubit chips (“chiplets”) tiled together, the 36-qubit system is based on Rigetti’s proprietary modular chip technology and unlocks the Company’s path to building a 100+ qubit chiplet-based system. Rigetti plans to launch its 36-qubit system on August 15, and remains on track to release its 100+ qubit chiplet-based system at 99.5% median two-qubit gate fidelity before the end of 2025.

“We benefit from the many advantages of superconducting qubits, including gate speeds more than 1,000x faster than other modalities like ion trap and pure atoms, and scalability. By leveraging well-known techniques from the semiconductor industry, we’ve developed proprietary technology that we believe is critical to enable scaling to higher qubit count systems,” says Dr. Subodh Kulkarni, Rigetti CEO. “We look forward to sharing more updates when we release our operating results for the second quarter of 2025.”

*Rigetti implemented CZ gates, which are a commonly used two-qubit gate for executing quantum circuits and have equivalent computational power to iSWAP gates.

About Rigetti

Rigetti is a pioneer in full-stack quantum computing. The Company has operated quantum computers over the cloud since 2017 and serves global enterprise, government, and research clients through its Rigetti Quantum Cloud Services platform. In 2021, Rigetti began selling on-premises quantum computing systems with qubit counts between 24 and 84 qubits, supporting national laboratories and quantum computing centers. Rigetti’s 9-qubit Novera™ QPU was introduced in 2023 supporting a broader R&D community with a high-performance, on-premises QPU designed to plug into a customer’s existing cryogenic and control systems. The Company’s proprietary quantum-classical infrastructure provides high-performance integration with public and private clouds for practical quantum computing. Rigetti has developed the industry’s first multi-chip quantum processor for scalable quantum computing systems. The Company designs and manufactures its chips in-house at Fab-1, the industry’s first dedicated and integrated quantum device manufacturing facility. Learn more at www.rigetti.com.