The only thing OpenResearch bills for is managed compute, which is prepaid: top up your organization's balance, and OpenResearch deducts usage at the provider's rate with no markup.
Open the organization's Billing tab on openresearch.sh. It shows the current balance, in-flight charges, automatic top-up, and recent activity. Click Top up to add between $1 and $2,000 by card, WeChat Pay, or Alipay.
Turn on Automatic top-up to charge your saved card whenever the balance falls below a threshold ($5 to $500), adding an amount you choose ($10 to $500). It needs a saved card with a billing address, and turns itself off after three failed charges in a row.
The In flight tile estimates charges accumulating on running machines since their last billed tick.
Recent activity lists top-ups, compute charges, refunds, and manual adjustments. Positive entries add to your balance; negative entries deduct from it.
A balance of $0 or less blocks new managed machines, and running ones are shut down once the balance reaches $0. Top up or turn on automatic top-up before long workloads. Your own compute is unaffected.