IBM ibm_cusco
IBM · Apache-2.0 last capture 2025-02-26ibm_cusco is a 127-qubit IBM quantum computer, with records from 2024 to 2025.
On its latest calibration (26 February 2025), a typical two-qubit operation failed about 1 in 46, better than 12% of the 65 other devices in this record.
The newest record is from 26 February 2025, so the machine may since have been upgraded or retired.
Every figure below is the device's latest measurement of that metric, with its own date and source. See how the whole field is progressing →
Success rate of the chip's single best pair of qubits. The best pair flatters the chip; the typical one matters more.
How often a typical two-qubit operation on this chip fails, from the vendor's own calibration.
How long a typical qubit holds its state before it decays, in microseconds. Longer leaves more time to compute.
How long a typical qubit keeps its delicate quantum phase, in microseconds.
How often reading a typical qubit's value at the end gives the wrong answer.
Physical qubits on the device. More only helps if they are good enough to use together.
History
Each point is one dated measurement (2 snapshots in total).
Provenance
- Source
- IBM · Apache-2.0
- Licence
- Apache-2.0 · Qiskit fake backend calibration snapshot
- Raw redistributable
- yes
- Captured
- 2025-02-26T20:35:12
Cite this page
@misc{provenova_ibm_ibm_cusco,
title = {IBM ibm_cusco — calibration & benchmark history},
howpublished = {\url{https://provenova.net/hardware/ibm/ibm_cusco}},
publisher = {Provenova},
note = {accessed 2026-10-19}
}
Compare with
Data: real IBM device calibration published in Qiskit's fake backends (Apache-2.0). Rankings on the live leaderboard.