Compare · Quantum computers
AC1000 vs Cepheus-1-108Q
RANKED BY PHYSICAL QUBITS ON AN OPERATIONAL SYSTEM
#1 VS #7
CHECKED 06 SEPT 2026
Side by side
Verdict
AC1000 ranks #1 of 16 on Physical qubits on an operational system (1,200+); Cepheus-1-108Q ranks #7 (108).
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 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