Rigetti Releases 108-Qubit Cepheus-1-108Q System via Cloud Platforms
quantumcomputingreport.com Apr 8, 2026

Rigetti Releases 108-Qubit Cepheus-1-108Q System via Cloud Platforms

AI-summarised brief · reviewed before publication

Rigetti Computing has released its 108-qubit Cepheus-1-108Q quantum computing system, accessible via cloud platforms. The system scales the company's modular architecture, increasing qubit count from 36. It achieves 99.1% median two-qubit gate fidelity and 99.9% median single-qubit fidelity, with gate speeds of 60 nanoseconds. This marks the first gate-based quantum device over 100 qubits on Amazon Braket, supporting research in materials science, optimization, and quantum simulation.