Compare · Quantum computers
AC1000 vs Willow
RANKED BY PHYSICAL QUBITS ON AN OPERATIONAL SYSTEM
#1 VS #8
CHECKED 06 SEPT 2026
Side by side
Verdict
AC1000 ranks #1 of 16 on Physical qubits on an operational system (1,200+); Willow ranks #8 (105).
Rank 01 of 16 · leads
Physical qubits on an operational system
1,200+
MakerAtom Computing
Date2025
Verified04 Sept 2026
Evidence
Atom Computing AC1000 product page spec table: "Physical qubits (PQs) > 1,200". Secondary quality figure on the same table: "2Q Gate Fidelity > 99.6%". The page does not publish a single exact integer above 1,200, so the rank uses the vendor's own "> 1,200" wording.Rank 08 of 16
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).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