Rigetti Ankaa-3
Historical data from Rigetti's 84-qubit Ankaa-3 superconducting QPU, accessed via AWS Braket. Ankaa-3 was retired by Rigetti in April 2026 and succeeded by Cepheus-1-108Q.
Consistency over time
Within-run consistency score (1 - std dev) — the primary stability metric. Higher is more consistent. Faded line and dots are individual runs; bold line and larger dots are the 4-run rolling average.
Success probability over time
Success probability for a given circuit is the fraction of shots that produced the correct output — where "correct" is the deterministic, noise-free answer computed by classical simulation. Each point is the mean across the 10 circuits sampled that week. The bold line is the 4-run rolling average; faded line and dots are individual runs. The shaded band shows ±1 standard deviation within the run.
Performance breakdown
How success probability varies across circuit depth and input state, aggregated across all runs.
Success probability by circuit depth and input state
Each point is one (depth, input state) combination. Point size reflects how many circuits were run with that combination. Drag to rotate.
Distribution by circuit depth
Mean success by circuit depth
Mean success probability for each depth, averaged across all runs. A declining trend confirms that noise accumulates as circuit depth increases.
Mean success by input state
Does the initial qubit state affect results? Ideally it shouldn't — deviations suggest state-preparation or readout asymmetry.