Pricing
Celeris uses prepaid, per-token billing. Buy credits under Settings → Billing in the Console; completed requests draw from the workspace's balance according to token usage. There are no subscriptions, seat charges, or minimum commitments.
Rates
Each model is priced separately, per million tokens:
| Model | Input tokens | Cached input tokens | Output tokens |
|---|---|---|---|
celeris-1 | US$0.20 per million | US$0.02 per million | US$0.70 per million |
celeris-1-magnus | US$0.20 per million | US$0.02 per million | US$0.70 per million |
celeris-1-decision | US$0.04 per million | US$0.04 per million | Free |
celeris-1-decision reports its tokens as input_tokens and output_tokens;
see Decisions.
For chat completions and the Responses API, see Token usage for how reported usage determines billing.
Buying credits
Buy credits with a card (Stripe) under Settings → Billing, in preset amounts of $5 / $10 / $50 / $100 or a custom amount between $5 and $1,000 per purchase. Receipts are emailed automatically, and invoice documents remain available on the same billing page.
When your balance reaches zero, API calls return
402 insufficient_quota until you add credit. See
Going to production for production
monitoring guidance. See Auto Top-Up for automatic
purchases and the balance-email schedule.
Credit expiry
Free and promotional credit granted to your workspace expires 30 days after it is granted. Service credit Celeris issues as goodwill expires one year after it is granted. Purchased credit does not expire.
Usage draws from the credit that expires first. Expired credit leaves your
balance and cannot be restored; from a zero balance, API calls return
402 insufficient_quota until you add credit.
Settings → Billing shows the next date on which some of your credit expires.
We also email you about it: once two weeks ahead if you have not spent any of the credit yet, once three business days before the date, and once when it expires. Turn these off under Credit balance and expiry in Settings → Notifications.
For reserved capacity, custom limits, or invoicing beyond self-service top-ups, contact us.