# Pricing

Celeris uses prepaid, per-token billing. Buy credits under
[**Settings → Billing**](https://console.celeris.ai/settings/billing) in the
[Console](/console#billing); 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`](/models#celeris-1) | US$0.20 per million | US$0.02 per million | US$0.70 per million |
| [`celeris-1-magnus`](/models#celeris-1-magnus) | US$0.20 per million | US$0.02 per million | US$0.70 per million |
| [`celeris-1-decision`](/models#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](/decisions#usage-and-cost).

For chat completions and the Responses API, see
[Token usage](/api-reference#token-usage) for how reported usage determines billing.

## Buying credits

Buy credits with a card (Stripe) under
[**Settings → Billing**](https://console.celeris.ai/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`](/errors#402) until you add credit. See
[Going to production](/going-to-production#billing-readiness) for production
monitoring guidance. See [Auto Top-Up](/console#auto-top-up) for automatic
purchases and the balance-email schedule.

## Credit expiry

Credit granted to your workspace expires **30 days** after it is granted.

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`](/errors#402) until you add credit.

[**Settings → Billing**](https://console.celeris.ai/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**](https://console.celeris.ai/settings/notifications).

For reserved capacity, custom limits, or invoicing beyond self-service
top-ups, [contact us](mailto:support@celeris.ai).