Credits

Credits are how Vilvik bills for work. One credit is a small unit of compute time. The exact amount per credit is calibrated against the base CPU and memory rates and is shown on the credits page.

What spends credits¶

• Website submissions spend credits at the same rate as the API. The amount depends on how long the run takes and how much memory it uses.
• API submissions are billed when the run finishes. The cost reflects the actual CPU seconds and memory the run consumed, not the parameters you submitted. You only pay for what your job actually used.
• Re-executing or continuing a submission is a fresh run and costs credits like any other run.
• Reading a result does not cost anything.

A run that fails for an out-of-memory or timeout reason still costs something for the time it ran. A run that fails validation before it starts does not cost anything.

Where the balance comes from¶

Every account gets a monthly free allowance. The size of the allowance depends on your tier (see Plans and tiers). Anything above the free allowance comes out of paid credits, which you buy as a top-up.

The platform always spends free credits first. Paid credits only get touched after the free balance hits zero.

How to check your balance¶

Open the billing tab on your profile. The page shows:

• Free balance and when it resets.
• Paid balance.
• A history of charges and top-ups.

Topping up¶

The same page has a Top up button. Pick an amount, follow the Stripe checkout, and the credits land in your paid balance right after the payment confirms.

Receipts¶

Every charge shows up as a ledger entry. Click the row to see the submission it came from and the metering numbers we used to compute the cost. Stripe also emails you a receipt for every paid top-up and subscription charge.

Related pages¶

• Plans and tiers
• Rate limits and quotas