Compare · Quantum computers
Willow vs Helios
RANKED BY PHYSICAL QUBITS ON AN OPERATIONAL SYSTEM
#8 VS #9
CHECKED 06 SEPT 2026
Side by side
Verdict
Willow ranks #8 of 16 on Physical qubits on an operational system (105); Helios ranks #9 (98).
Rank 08 of 16 · leads
Physical qubits on an operational system
105
MakerGoogle Quantum AI
Date2024
Verified04 Sept 2026
Evidence
Google Willow announcement and spec sheet: 105 qubits. Spec sheet 2Q gate error 0.33% +/- 0.18% (CZ, chip 1) and 0.14% +/- 0.052% (iswap-like, chip 2).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.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