Compare · Quantum computers
Helios vs System Model H2
RANKED BY PHYSICAL QUBITS ON AN OPERATIONAL SYSTEM
#9 VS #11
CHECKED 06 SEPT 2026
Side by side
Verdict
Helios ranks #9 of 16 on Physical qubits on an operational system (98); System Model H2 ranks #11 (56).
Rank 09 of 16 · leads
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.Rank 11 of 16
Physical qubits on an operational system
56
MakerQuantinuum
Date2024
Verified04 Sept 2026
Evidence
Quantinuum System Model H2 product page: 56 fully-connected qubits, two-qubit gate fidelity >99.9%, single-qubit gate fidelity >99.99%, quantum volume 33,554,432 (2^25). Commercially available via Quantinuum subscription and Microsoft Azure.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