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Cepheus-1-108Q vs Helios

RANKED BY PHYSICAL QUBITS ON AN OPERATIONAL SYSTEM #7 VS #9 CHECKED 06 SEPT 2026
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Verdict

Cepheus-1-108Q ranks #7 of 16 on Physical qubits on an operational system (108); Helios ranks #9 (98).

Rank 07 of 16 · leads
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).
Rank 09 of 16
Physical qubits on an operational system
98
MakerQuantinuum
Date2025
Verified04 Sept 2026
Evidence
Quantinuum Introducing Helios (5 Nov 2025): 98 fully connected physical qubits, 2Q fidelity 99.921% across all pairs. Logical-qubit counts from the same post are not the ranking number.
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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
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