How Solver Usage is Charged

D-Wave charges you for time that solvers run your problems, with rates depending on QPU usage. Because the QPU usage time of hybrid solvers constitutes just a fraction of the total time —with the rest allocated to usage of classical resources—rates are lower for hybrid-solver time than for QPU time. You can see the rate at which your account’s quota is consumed for a particular solver in the solver’s quota_conversion_rate property.

You can see the time you are charged for in the responses returned for your submitted problems. The relevant field in the response depends on the solver:

For example, for a QPU solver with a quota conversion rate of 1, a problem that results in a 'qpu_access_time': 1500, deducts 1.5 milliseconds seconds from your account’s quota; for a hybrid solver with a quota conversion rate of 20, a problem that results in a charge time of 40 seconds, deducts 2 seconds from your account’s quota.