Pricing
Pay per input token from a prepaid balance. Top up with SOL or USDC; no card, no subscription.
| Model | Parameters | Per 1M input tokens | Tokens per $1 | 1,000-token request |
|---|---|---|---|---|
| Cogent NanoFastest Cogent model. 32M parameters.cogent-nano | 32M | $0.02 | 50,000,000 | $0.00002 |
| Cogent LargeMost accurate Cogent model. 400M parameters.cogent-large | 400M | $0.03 | 33,333,333 | $0.00003 |
Estimate a bill
The arithmetic is the backend's: integer nano-USD, rounded up per request. Every response reports its exact token count and cost, so you can calibrate the estimate with a few real requests.
State, questions and options together.
Per day, month, or whatever period you plan for.
Each request costs ⌈tokens × price per 1M × 1000⌉ nano-USD (1 USD = 10⁹ nano-USD), rounded up per request. Totals over $0.01 are shown to the cent.
Billing questions
- What is an input token?
- A token the model reads after truncation: the state, every question and every option, counting the separator tokens the layout adds. A request that is split into several encoder passes is still billed once per token. Every response tells you how many tokens it used and what it cost.
- Is there a minimum or a subscription?
- No subscription. Top-ups start at $1 and go up to $10,000 each. Prices are per token with no monthly minimum.
- What happens when my balance runs out?
- The API answers
402 insufficient_balancebefore running the model, so a refused request costs nothing. Top up and retry. - Am I charged for failed requests?
- Invalid requests are rejected before billing. If the model fails while running a request that was already charged, the charge is refunded automatically.
- How do I pay?
- With SOL or USDC on Solana mainnet, from a self-custody wallet (Phantom, Solflare, Backpack and others) in the browser or by scanning a Solana Pay QR code. A SOL quote holds its price for 30 minutes. You pay the Solana network fee, a fraction of a cent. Exchange withdrawals are not supported because they cannot include the payment reference. See top-ups in the docs.
Start with $1.