Machines / IBM Fez

IBM Fez

Reading status…

IBM · IBM Heron r2 (as listed in Qly's provider catalog)

Reading vendor data…

Qubits

156

Routes

Now

Reading status…

512 shots

$0.80EST.

Uptime

—

Routes

Through	Device id	Region	Now	Queue	Price
IBM Quantum	ibm_fez	us-east (IBM Quantum)	Reading status…		$1.60 / QPU-second · min ~$0.80 EST. IBM Quantum pricing, Pay-As-You-Go per QPU-second; the minimum is Qly's 0.5 s floor

Price

Price per runPUBLISHED

Queue

QueuequeuedPUBLISHED

Calibration

IBM FezIBM · 156 qubits

Asking IBM…

2-qubit error%PUBLISHED

Readout error%PUBLISHED

T1PUBLISHED

T2PUBLISHED

Measured

MEASURED

Measured over time · share of shots in |00⟩ or |11⟩

IBM FezIBM

pair not recorded

10 runs

qubits 0-1

3 runs

share, %

06-1006-1209-2209-23

One dot is one run, 13 in all. Height is the share of shots on a target outcome, 0 to 100% in every row, one row per physical pair. Tap or hover a dot for its value. The axis is the days something was run, evenly spaced: the gaps between days are not to scale. Runs on the same day are spread sideways so they can be counted.

Mirror circuits

Mirror circuits · share of shots on the one right answer

2 qubits · 3 runs

0255075100

random bits 25%

Fez

2832

random layers before the mirror

4 qubits · 3 runs

0255075100

random bits 6.25%

Fez

2832

random layers before the mirror

IBM Fez6 runs

Tap or hover a marker to read its share.

One marker is one run, side by side where a cell has several; there is no line or band because either would need a summary of the runs. Each panel is one circuit width, and the dashed line is what a device returning random bits would score on it.

+ Show every run, as tables

Machine	Runs	Shots each	In 00 or 11, per run	Median
IBM FezIBM qubits not recorded	10	512, 1024	88.587.585.788.185.989.386.789.386.783.4	87.1
IBM FezIBM qubits 0 and 1	3	512	93.293.692.4	93.2

Circuit	IBM Fez
2 qubits, 2 layers	89.3
2 qubits, 8 layers	87.3
2 qubits, 32 layers	70.5
4 qubits, 2 layers	80.7
4 qubits, 8 layers	67.6
4 qubits, 32 layers	29.7

Published vs. measured

PUBLISHEDwhole machine

2Q fidelity (median): 99.73%

342 of 352 pairs measured · 10 unusable · calibration the run was submitted under, 2026-09-22 05:03 UTC

MEASURED1 run, 2026-09-22

0%100%

93.2% · 477 of 512 shots in 00 or 11

How we measure →