Pricing

Celeris uses prepaid, per-token billing. Buy credits 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

Tier	Prompt tokens	Completion tokens
General	US$2 per million	US$6 per million

Estimating costs

Completed responses report exact token counts in their usage block:

"usage": {"prompt_tokens": 27, "completion_tokens": 2, "total_tokens": 29}

Cost per call is prompt_tokens × $2/M + completion_tokens × $6/M. The following examples show approximate costs for common agentic workloads:

Workload	Prompt	Completion	Cost per call	Calls per US$1
Classification / routing	~30 tokens	~4 tokens	~$0.000084	~12,000
Judge / rerank scoring	~120 tokens	~3 tokens	~$0.000258	~3,900
Structured extraction	~200 tokens	~48 tokens	~$0.000688	~1,500
Query rewriting	~60 tokens	~24 tokens	~$0.000264	~3,800

Two request settings have the greatest effect on spend:

• Set max_tokens deliberately. Completion tokens cost three times as much as prompt tokens, and a limit bounds the cost of unexpected output.
• Keep prompts concise. Repeated instruction tokens are billed on every call.

What is — and isn't — charged

• Served requests are charged from their exact usage token counts — the same token volumes the usage dashboard aggregates.
• Rejected requests are not charged. This includes throttled (429), unauthorized (401), and out-of-credit (402) requests.
• Server-side failures are free. You are never charged for a 502 or 503.
• A client disconnect does not guarantee cancellation. If processing continues after a disconnect, the request may still be charged for work performed.

Buying credits

Buy credits with a card (Stripe) in the Console, in preset amounts of $10 / $20 / $50 / $100 or a custom amount between $10 and $1,000 per purchase. Receipts are emailed automatically, and invoice documents remain available from Billing.

When your balance reaches zero, API calls return 402 insufficient_quota until you add credit. See Going to production for production monitoring guidance.

For reserved capacity, custom limits, or invoicing beyond self-service top-ups, contact us.