Credits explained

Voluminate works on a simple principle: for AI conversions, runs are free, you pay for what you keep. Hi-Fi CAD is the one exception — see below.

The lifecycle of a credit (AI conversion)

1. Reservation — when a conversion starts, one credit is put on hold. It is not spent yet, but it is no longer available for another run.
2. Charge — the credit is deducted the moment you download the result (STL or STEP). The button shows the cost before you confirm.
3. Release — if the run fails, gets stuck, or you never download, the hold is released automatically.

Repeat downloads of a model you already paid for are always free.

Regenerations

The first run and the first regeneration of a part are free to trigger. Every further regeneration of the same part costs 0.25 credits when you start it; the full credit is still only charged if you download a result.

Hi-Fi CAD is charged upfront

A Hi-Fi CAD order charges 3 credits the moment you submit the request, not on download, because real engineering work starts immediately. If the request is declined — including if you decline a complexity surcharge — the 3 credits are refunded in full.

Balances

• Available credits — what you can start new runs with
• On hold — reserved by runs currently in flight
• With 0 available credits you cannot start a new conversion; top up on the billing page.

Free credits

New accounts receive 3 free conversions, no credit card required.

Where to see everything

The billing page shows your balance, your credit history (every grant, charge, hold and refund) and your invoices.