ZKSF

Quantum computing cost calculator

Budget$20

Shots a $20 balance buys on each processor, at provider list price.

ManufacturerProcessorQubitsRateMax shots per jobShots for $20
RigettiCepheus-1-108Q108$0.30 / task + $0.000425 / shot50,00046,352
IQMGarnet20$0.30 / task + $0.00145 / shot20,00013,586
IQMEmerald54$0.30 / task + $0.0016 / shot20,00012,312
QuEraAquila256$0.30 / task + $0.01 / shot1,0001,970over 1,000 per job, so split across tasks
AQTIBEX Q112$0.30 / task + $0.0235 / shot2,000838
IonQForte Enterprise 136$0.30 / task + $0.08 / shot5,000246
  • Provider list rates, passed through without markup. Generated from the same registry that bills each job, so this page cannot quote a price the service will not charge.
  • Aquila: runs Friday 04:00 to Monday 04:00 UTC, pauses 12:00-13:00 and 00:00-01:00 daily
  • Queue time is not billed.
The ZKSF Billing screen on a laptop, available credit, spend by tier and daily spend, with the Android app's pricing beside it

This calculator is in the console too, next to your balance. Sign up to ZKSF today

What these numbers say

  • $20 buys roughly 46,352 shots on Rigetti Cepheus-1-108Q
  • The same $20 buys about 250 on IonQ Forte Enterprise 1
  • Neither number is a mistake
  • They are different physical technologies billed on different clocks, one by the shot and one by the second
  • Simulation costs a fraction of a cent a circuit, which is why most work should start there

Why the spread is so wide

  • A superconducting chip repeats a circuit thousands of times a second, so a shot is cheap
  • A trapped-ion machine moves real atoms with lasers and repeats far more slowly, so a shot costs more

Splitting a budget across engines

  • The table shows each engine on its own, because that is the honest unit
  • Every rate is also given per shot and per task, so a top-up divides however you like
  • Run the search in simulation for a fraction of a cent, then spend the rest on the one hardware run that genuinely needs a real device
  • Every job can be estimated before it runs, at no charge, and simulations are then billed by the second they run