Compare · Quantum computers
Gemini vs Cepheus-1-108Q
RANKED BY PHYSICAL QUBITS ON AN OPERATIONAL SYSTEM
#2 VS #7
CHECKED 06 SEPT 2026
Side by side
Verdict
Gemini ranks #2 of 16 on Physical qubits on an operational system (260); Cepheus-1-108Q ranks #7 (108).
Rank 02 of 16 · leads
Physical qubits on an operational system
260
MakerQuEra
Date2025
Verified04 Sept 2026
Evidence
QuEra Gemini product page: "Number of Qubits 260 physical qubits", digital gate-mode. Secondary: Global 2-Qubit Gate Fidelity 99.2%. Roadmap page lists Gemini as launched 2025.Rank 07 of 16
Physical qubits on an operational system
108
MakerRigetti
Date2026
Verified04 Sept 2026
Evidence
Rigetti What we build page: Cepheus-1-108Q deployed 7 April 2026, 108 qubits, two-qubit gate fidelity 99.1% (CZ).Try another pair
Source Vendor product pages and official announcements (Atom Computing AC1000, QuEra Gemini and Aquila, IBM Quantum hardware, Pasqal Orion Gamma…
Last checked 06 Sept 2026