Your wallet is your budget
Fund a USD wallet and pay only for the compute delivered. It is prepaid, so you can never spend more than you have funded. No credits, no tiers, no subscriptions. New accounts start with a $5 wallet balance.
A wallet, not a subscription
The model is the one you already use on Modal, OpenAI, and Anthropic. You hold a USD balance, jobs debit it at the actual cost of the compute they used, and you top up when it runs low. There are no plans or tiers to compare, just the balance you hold.
1. Sign up free
Create an account at tools.ranomics.com. Get $5 in your wallet immediately, before you decide whether to top up.
2. Fund your wallet
Top up in any amount from $20. Your wallet is prepaid, so you can only ever spend what you have funded. Tax is added at checkout where applicable.
3. Submit with a live estimate
Every form shows a live estimate and your balance before you submit. Large requests fan out into a campaign across GPUs and bill only for compute delivered. Each tool also carries a per job ceiling on what it can charge, so a bad input cannot run away with your balance.
4. Auto reload, optional
Save a card to auto reload when balance drops below a threshold. Default off. Limited to one auto reload per 24 hours plus a monthly cap you set, so a runaway loop cannot charge your card more than once a day.
No per design charge, and a cap on what one job can cost
There is no per design charge to budget around, so you are never trading a plan tier against a design count. What each tool does have is a per job ceiling on what it can charge you, so a bad input cannot run away with your balance. A job your balance cannot cover is declined at submit rather than started, and if a campaign runs the balance down it pauses until you top up.
Every job and campaign displays a live estimate and your balance before you submit. You confirm or cancel. If a job ends up cheaper than estimated, the surplus returns to your wallet.
No surprise bills
Your funded balance is the ceiling. These guardrails make sure that ceiling is never crossed while you are asleep.
Prepaid, capped by what you fund
Your wallet is prepaid, so you can only ever spend what you have funded. A campaign pauses the moment your balance cannot cover the next unit of compute. Top up to continue, or download what has already finished.
Pay for compute delivered
Every job places a wallet hold against a live estimate, then settles at the actual compute consumed. If a job uses less than the hold, the difference returns to your wallet. If it runs longer than estimated, it can settle above the hold for the GPU time actually used, up to each tool's per job ceiling. Sub jobs that fail on our side are refunded.
Auto reload limits
Auto reload, when enabled, is limited to one charge every 24 hours, enforced server side, so a compromised account or runaway loop cannot charge your card more than once a day. You also set a monthly auto reload limit, default $1,000, which stops the next reload once it would take your recorded reloads past that limit.
Mid run cost warning
If the actual cost runs well past the estimate, you get a warning email while the job is still running, so a bad input never runs away quietly.
Failed jobs
Infrastructure failures on our side refund the full hold. Jobs that completed normally but produced zero passing designs, or jobs you cancelled mid run, are billed for the GPU consumed. Ambiguous cases default to refund.
No refunds on top ups
Top ups are final. Money you top up does not expire. The one exception is the starter credit on a new account, which expires if you leave it unspent, with the date shown on your wallet page. Start with a small top up to evaluate the platform if you are unsure.
Prefer a managed campaign with wet lab validation?
If you would rather hand off the whole campaign, a Binder Pilot is the managed option: a fixed scope engagement with a defined deliverable, wet lab handoff if you want it, and a single point of contact. It is a different product, not a spend threshold.