Catalog — QPU record · D-Wave · Superconducting
D-Wave Advantage2
D-Wave Advantage2 is a superconducting annealing processor by D-Wave with a disclosed qubit count detailed below (2025). Below: every publicly disclosed figure with its source, method, and vendor-claim status — plus what is not disclosed, recorded as findings.
Measurement records8 disclosed · 4 not disclosed · 4 sources
Select a figure to open its record
Qubit count (qubit_count_physical)4,400+ (vendor GA announcement); per-solver: Advantage2_system1 = 4,577 qubits / 41,514 couplers, Advantage2_system2 = 4,514 qubits / 40,409 couplers (both Zephyr Z12); Advantage2_system4 = 1,202 qubits / 10,537 couplers (Zephyr Z6) qubitsvendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Aggregation
- per deployed QPU solver
- Notes
- GA press release (dwavequantum.com, 2025-05-20) states '4,400+ qubit annealing quantum computer'; docs give exact working-qubit counts per solver.
- Citation key
[d-wave/d-wave-advantage2:qubit-count-physical:2026-08-19]
Connectivity degree (connectivity_degree)20 (each qubit coupled to 20 other qubits) couplers per qubitvendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Notes
- Zephyr degree 20 = 16 internal + 2 external + 2 odd couplers.
- Citation key
[d-wave/d-wave-advantage2:connectivity-degree:2026-08-19]
Two-qubit gate quality (two_qubit_gate_fidelity)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
- dwavequantum.com Advantage2 GA press release (2025-05-20); docs.dwavequantum.com topology and per-QPU solver properties pages
- Notes
- Not applicable in the usual sense: Advantage2 is a quantum annealer with no gate model, so no 2Q gate fidelity is published.
Single-qubit gate quality (one_qubit_gate_fidelity)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
- dwavequantum.com press releases; docs.dwavequantum.com solver properties pages
- Notes
- Not applicable: annealing processor, no published 1Q gate fidelity.
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
- dwavequantum.com Advantage2 GA press release (2025-05-20); docs.dwavequantum.com per-QPU solver properties page
- Notes
- Only a relative claim is published: GA press release states 'a twofold increase in coherence' vs the prior Advantage QPU (no absolute T1/T2 values found).
Readout (readout_error_rate)≤ 0.001 error ratevendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Aggregation
- as listed in per-QPU solver properties tables
- Notes
- Docs' per-QPU tables list readout error rates of ≤ 0.001 for the documented solvers; exact per-solver values are in the tables on that page.
- Citation key
[d-wave/d-wave-advantage2:readout-error-rate:2026-08-19]
Gate duration (two_qubit_gate_duration)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
- docs.dwavequantum.com per-QPU solver properties page
- Notes
- Not applicable: annealing processor. The relevant timing parameter is the annealing schedule, published per QPU as downloadable spreadsheets on the per-QPU solver properties page.
Operating temperature (operating_temperature)Advantage2_system1: 20 ± 1.0 mK; Advantage2_system2: 16.7 ± 1.0 mK; Advantage2_system4: 18 ± 1.0 mK mKvendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Aggregation
- per deployed QPU solver
- Citation key
[d-wave/d-wave-advantage2:operating-temperature:2026-08-19]
Performance vs previous generation (performance_vs_previous_generation)40% increase in energy scale; 75% reduction in noise; twofold increase in coherence (all relative to Advantage)vendor claim
Vendor claim
- Source
- D-Wave Announces General Availability of Advantage2 Quantum Computer · published 2025-05-20
- Method
- VENDOR_UNSPECIFIED
- Notes
- Marketing-level relative claims; no absolute figures given in the press release.
- Citation key
[d-wave/d-wave-advantage2:performance-vs-previous-:2026-08-19]
Cloud access (cloud_access)D-Wave Leap quantum cloud service (Advantage2 GA in Leap since 2025-05-20); not listed on Amazon Braket (Braket's current device list contains no D-Wave systems)vendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Notes
- Braket absence verified against https://docs.aws.amazon.com/braket/latest/developerguide/braket-devices.html (fetched this session).
- Citation key
[d-wave/d-wave-advantage2:cloud-access:2026-08-19]
Pricing model (pricing_model_exists)Yes — Leap offers a free trial (Leap Quantum LaunchPad program); paid plan details are behind signup, not on the public pagevendor claim
Vendor claim
- Method
- VENDOR_UNSPECIFIED
- Citation key
[d-wave/d-wave-advantage2:pricing-model-exists:2026-08-19]
Release year (release_year)General availability announced 2025-05-20 (prototypes previously in Leap; press release cites 20.6M problems run on Advantage2 prototypes)vendor claim
Vendor claim
- Source
- D-Wave Announces General Availability of Advantage2 Quantum Computer · published 2025-05-20
- Method
- VENDOR_UNSPECIFIED
- Citation key
[d-wave/d-wave-advantage2:release-year:2026-08-19]
QPU137 is independent and is not affiliated with, endorsed by, or sponsored by D-Wave. 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.