How billing works now: prepaid credits, per-second

Billing as of 28 September 2026 (data_asof: 2026-09-28). XenoCI runs on prepaid credits with no monthly subscription or monthly fee. Run time is deducted per second with no minimum charge (1 credit = 1 M4 minute). Your 100 free credits each month (100 M4 minutes) are used first and do not carry over. Purchased extra credits (KRW 100 each) never expire.