Catalog — QPU record · QuEra · Neutral atom
QuEra Gemini-class
QuEra Gemini-class is a neutral atom gate-based processor by QuEra with 260 qubits (2025). Below: every publicly disclosed figure with its source, method, and vendor-claim status — plus what is not disclosed, recorded as findings.
Measurement records6 disclosed · 2 not disclosed · 2 sources
Select a figure to open its record
Qubit count (physical qubit count)260 physical qubitsvendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Citation key
[quera/quera-gemini-class:physical-qubit-count:2026-08-19]
Two-qubit gate fidelity (two-qubit gate fidelity)99.2 percentvendor claim
Vendor claim
- Method
- Not stated on the vendor spec page (no benchmarking method given)
- Aggregation
- Not stated (no median/typical/best label on the page)
- Notes
- Native 2Q gate type not named on the page; only the fidelity figure is given.
- Citation key
[quera/quera-gemini-class:two-qubit-gate-fidelity:2026-08-19]
One-qubit gate fidelity (one-qubit gate fidelity)99.9% (global); 99.7% (local) percentvendor claim
Vendor claim
- Method
- Not stated on the vendor spec page
- Aggregation
- Not stated
- Citation key
[quera/quera-gemini-class:one-qubit-gate-fidelity:2026-08-19]
SPAM fidelity (SPAM fidelity)99.7 percentvendor claim
Vendor claim
- Method
- Not stated
- Aggregation
- Not stated
- Citation key
[quera/quera-gemini-class:spam-fidelity:2026-08-19]
Repetition rate (repetition rate)1 shot/secondvendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Notes
- Page also lists 20 parallel 2-qubit gate pairs and room-temperature operation designed for HPC integration; circuit interface is QASM.
- Citation key
[quera/quera-gemini-class:repetition-rate:2026-08-19]
Coherence (coherence times (T1/T2))not publicly disclosed
Not publicly disclosed — checked 2026-08-19
- Finding
- No public disclosure found. This is a recorded, dated finding — we do not substitute an estimate or borrow a figure from a sibling device.
- Sources queried
- quera.com/gemini spec page (states storage zone has 'long coherence time' but gives no number)
Native gate set (native gate set)not publicly disclosed
Not publicly disclosed — checked 2026-08-19
- Finding
- No public disclosure found. This is a recorded, dated finding — we do not substitute an estimate or borrow a figure from a sibling device.
- Sources queried
- quera.com/gemini (lists global/local 1Q and 2Q fidelities and QASM interface but does not name the native gates)
Availability (availability / deployments)First on-premises installation operational at AIST (Japan), alongside the NVIDIA-powered ABCI-Q supercomputer; not offered on a public cloud as of retrievalvendor claim
Vendor claim
- Source
- QuEra Computing Marks Record 2025 (QuEra press release, syndicated via Yahoo Finance) · published 2025-12-09
- Method
- VENDOR_UNSPECIFIED
- Notes
- Gemini-class is real hardware, not just roadmap: the assignment's 'if real' check is confirmed by the vendor spec page and the AIST installation. QuEra's separate June 2026 announcement puts its fault-tolerant 'Libra' system on Amazon Braket in 2028.
- Citation key
[quera/quera-gemini-class:availability-deployments:2026-08-19]
QPU137 is independent and is not affiliated with, endorsed by, or sponsored by QuEra. Figures above are public disclosures recorded with their sources on 2026-08-19; vendor claims are labeled as such and may not be directly comparable across measurement methods — see methodology.