Compute is paid from a prepaid wallet in US dollars. Your plan sets the per-second rates; the wallet pays for what you run.
Funding the wallet
- Deposits: add funds by card on your billing page (payments go through Stripe).
- Monthly credit: paid plans add credit to the wallet each time the subscription renews; see Plans and limits.
- Vouchers: redeem a voucher code from your account.
Your account lists every deposit, credit, and charge.
What is charged
| Charged to the wallet | Not charged |
|---|---|
| Jobs: seconds run × your plan's rate for that hardware | Estimates and workflow validation |
| Workflow runs: the sum of their steps' jobs (a step reused from an identical earlier run costs nothing) | Reading status, results, artifacts, and events |
| Assistant turns: the tokens each turn uses | Science lookups and reference papers |
| Utilities and inference: they count toward monthly allowances instead |
Reservations
Starting work first reserves an amount, so you can never start more than you can pay for:
- A job reserves its estimate when you submit it.
- A workflow run holds its estimate when it starts; each step draws on that hold as it runs.
- An Assistant turn holds enough for the longest reply it could give.
When the work ends you pay the actual cost and the rest of the reservation is released. Get wallet balance returns your balance and active_reserved; what you can still start is the difference. If a new job or run doesn't fit, the request fails (400 for jobs and workflow runs, 402 for Assistant turns and plan-card approvals) and nothing starts.
Spend ceilings on API keys
An API key can carry a spend ceiling: the most that work started with that key may reserve in a calendar month (UTC). A job or run that would pass it fails with 403 (spend-ceiling-exceeded); the count starts again each month. Set one on every key you give to a script or an AI client; see Authentication.
Price per hour
What one hour of each machine costs on each plan. Jobs are charged per second.
| Hardware | Basic | Starter | Pro | Enterprise |
|---|---|---|---|---|
| CPU | $0.50 | $0.29 | $0.18 | $0.11 |
| Nvidia T4 | $2.05 | $1.48 | $1.19 | $0.90 |
| Nvidia L4 | $2.81 | $2.02 | $1.58 | $1.19 |
| Nvidia A10 | $3.85 | $2.74 | $2.20 | $1.66 |
| Nvidia L40S | $6.84 | $4.90 | $3.89 | $2.92 |
| Nvidia A100, 40 GB | $7.34 | $5.26 | $4.21 | $3.17 |
| Nvidia A100, 80 GB | $8.75 | $6.26 | $5.00 | $3.74 |
| Nvidia H100 | $13.82 | $9.86 | $7.88 | $5.94 |
| Nvidia H200 | $15.88 | $11.34 | $9.07 | $6.80 |
| Nvidia B200 | $21.89 | $15.62 | $12.49 | $9.40 |
Assistant token prices are in The Assistant.