Material Event (Form 8-K)

Item 8.01 Other Events.

On July 16, 2025, Rigetti Computing, Inc. (the "Company") announced that it achieved its mid-year performance milestone of 99.5% median two-qubit gate* fidelity on its modular 36-qubit system (composed of four 9-qubit chips tiled together), which represents a 2x reduction in median two-qubit gate error rate from the Company's previous best results on its 84-qubit single chip Ankaa™-3 system.

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