---
title: Estimate a price
description: The exact dollar price of a request, before you submit it.
---
`POST` `/v1/open/estimate`

**Host** `https://api.open.sume.com` · **Auth** none needed

Prices a request without running it. Send the model and the same inputs you would send to the router; the answer is what an open.sume.com key would be charged. Free and public.

## Request

### Body

| Name | Type | Required | Description |
|---|---|---|---|
| `model` | string | Yes | An open model id. |
| `input` | object | Yes | The request body you would send to the router, without `model`. |

## Example

<!-- api-call-example:v2-estimate -->

## Response

`200 OK`

```json
{
  "data": {
    "model": "seedance-2.5",
    "currency": "USD",
    "usd": "2.8890",
    "usd_micros": 2889000,
    "route": "fal",
    "billing": {
      "unit": "1000_video_tokens",
      "quantity": 108,
      "duration_seconds": 5,
      "resolution": "720p"
    }
  }
}
```

## Errors

| Status | `code` | When |
|---|---|---|
| 400 | `invalid_request` | The model or an input is not valid. |
| 404 | `not_found` | No open model with that id. |
| 429 | `rate_limited` | Too many requests from your address. Send your key to price at a higher rate. |

[All error codes](/docs/errors)

## Related

- [Billing](/docs/billing)
- [List open models](/docs/reference/catalog/list)