State of Quantum Hardware
A cross-vendor ranking of quantum devices, built from the public corpus of calibration snapshot s and openly-licensed benchmarks. Switch the ranking metric below. Rows are labelled by source & licence — vendor-reported rows are manufacturer claims, not independently reproduced here. How the corpus works →
Best 2Q fidelity
2Q gate fidelity
Median 2Q error
Median T1 (µs)
Median T2 (µs)
Algorithmic qubits (#AQ)
Quantum Volume
CLOPS
EPLG (error/layer)
Bell-state effective qubits
QFT accuracy
QAOA approx. ratio
Qubits
| Rank | Provider | Backend | QAOA approx. ratio | Source / licence | Captured |
|---|---|---|---|---|---|
| #1 | quantinuum | h2-2 | 0.8018 | Metriq · CC-BY-4.0 | 2026-01-23 |
| #2 | ibm | ibm_boston | 0.6734 | Metriq · CC-BY-4.0 | 2026-02-18 |
| #3 | ibm | ibm_kingston | 0.6412 | Metriq · CC-BY-4.0 | 2026-02-17 |
| #4 | ibm | ibm_marrakesh | 0.5731 | Metriq · CC-BY-4.0 | 2026-02-17 |
| #5 | ibm | ibm_pittsburgh | 0.5695 | Metriq · CC-BY-4.0 | 2026-02-19 |
| #6 | ibm | ibm_torino | 0.456 | Metriq · CC-BY-4.0 | 2026-02-19 |
| #7 | ibm | ibm_fez | 0.4209 | Metriq · CC-BY-4.0 | 2026-02-17 |
| #8 | iqm | iqm_garnet | 0.1432 | Metriq · CC-BY-4.0 | 2026-03-02 |
| #9 | iqm | iqm_emerald | 0.0099 | Metriq · CC-BY-4.0 | 2025-11-19 |
| #10 | origin | wukong_72 | -0.035 | Metriq · CC-BY-4.0 | 2026-02-24 |
Sources & attribution.
IBM rows are real device calibration snapshots from Qiskit's fake_provider (Apache-2.0).
Metriq rows are community benchmark submissions from metriq.info (CC-BY-4.0).
Zenodo rows are openly-licensed raw calibration datasets (CC-BY/CC0), cited per row.
Vendor-reported rows are specifications published by the manufacturer and are shown as claims, with the press/source link recorded in each snapshot's provenance.
Metrics differ in what they measure and how they're obtained, so compare within a metric and mind the source badge.