# Seedance 2.5 US Reference to Video API

> Seedance 2.5 ᠪᠠᠴᡳᡥᠠ ᠵᠠᠯᠠᠨ ᡤᠠᡵᠠᠯᠠᠯᠠᠨ, ᡝᠮᡤᡝᠯᡝ 30 ᠪᠠᠴᡳᡥᠠ, 10 ᠵᠠᠯᠠᠨ ᠸᡝᡳᠯᡝ 10 ᡩᠠᠮᠪᡠᠨ

`task` ᡳ ᠵᠠᠯᡳᠨ ᠴᡳ ᠪᠠᠴᡳᡥᠠ ᠵᠠᠯᡳᠨ ᡤᠠᡵᠠᠯᠠᠨ, ᠪᠠᠴᡳᡥᠠ ᠵᠠᠯᡳᠨ ᠪᡝ ᠵᠠᠯᡳᠨ ᡤᠠᡵᠠᠯᠠᠨ ᠸᡝᡳᠯᡝ ᠵᠠᠯᡳᠨ ᠪᡝ ᠵᠠᠯᡳᠨ ᡝᠯᡤᡝᠮᡝ ᠵᠠᠯᡳᠨ. 30 ᠪᠠᠴᡳᡥᠠ, 10 ᠵᠠᠯᠠᠨ ᠸᡝᡳᠯᡝ 10 ᡩᠠᠮᠪᡠᠨ ᠪᡝ ᠪᠠᠴᡳᡥᠠ ᠪᡝ ᡤᠠᡵᠠᠯᠠᠮᠪᡳ, @Image1 ᠵᠠᠯᡳᠨ ᠵᠠᠯᡳᠨ. 480p, 720p ᠠᠯᡳ 1080p, auto ᠠᠯᡳ 4 ᠴᡳ 30 ᠰᡝᡵᡝᠩᡤᡝ, 21:9 ᠴᡳ 9:16. `seed` ᠸᡝᡳᠯᡝ `bitrate_mode` ᠵᠠᠪᡠᠯᠠᠮᠪᡳ.

- Model id: `bytedance/seedance-2.5/us/reference-to-video`
- Made by: ByteDance
- Category: Reference to Video
- Output: video
- Charged by usage (up to $6.944 per run; the rest of the hold is refunded): $0.0107 / 1000 tokens (cheapest run $0.416 (416 API credits))
- Run: `POST https://api.doitong.ru/v1/run/bytedance/seedance-2.5/us/reference-to-video`
- Quote: `POST https://api.doitong.ru/v1/quote/bytedance/seedance-2.5/us/reference-to-video`
- Docs page: https://doitong.com/mnc/developers/models/bytedance/seedance-2.5/us/reference-to-video

## Pricing

Price: **$0.0107 / 1000 tokens**. Charged by actual usage at $0.0107 / 1000 tokens: up to $6.944 per run (the quote gives the maximum for your input), the rest is refunded automatically after the run.

The full example input below holds up to $6.944 = 6944 API credits (up to 648.9 × 1000 tokens × $0.0107) when it starts.

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). This model is charged by usage: `POST https://api.doitong.ru/v1/quote/bytedance/seedance-2.5/us/reference-to-video` with the same JSON body returns the most the run can cost for that input (`credits`, debited when the run starts); after the run you pay the usage the model reports and the rest is refunded automatically. An input whose maximum would exceed the per-run limit is refused with 422. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string \| null | no |  |  | ᠰᡠᠨᡤᠠ ᠪᡠᠶᡝᠮᡝᠨᡳ ᡥᡡᠯᠠᠨ. |
| `task` |  | enum (string) | no | `reference` | `reference`, `editing`, `extension` | ᠰᡠᠨᡤᠠᠨᡳ ᡤᡝᡪᡳᠯᡝᠨᡳ ᠵᠠᡴᡠᠨ ᡳᠯᡤᠠᠨ ᠵᡠᠪᡝᠨᡳ: `reference` ᠣᠮᠣᠰᡳ ᡩᠠᡳᠯᠠᠮᡝ ᠪᡝ ᠠᠰᡠᠮᠪᡳ, ᠵᠠᠰᡳᠮᡝ ᠣᠮᠣᠰᡳ ᠰᡠᠨᡤᠠ ᠪᡝ ᠵᠠᠰᡳᠮᡝ, ᠵᠠᡵᡤᠠᠮᡝ ᡳᠯᡤᠠᡵᡳ ᠵᠠᡵᡤᠠᠮᡝ. ᠵᠠᠰᡳᠮᡝ ᠪᡝ ᡶᡝᡵᡳᠯᡝᠮᡝ `aspect_ratio` ᠪᡝ `auto` ᠵᠠᠰᡳᠮᡝ; ᡝᡵᡝ ᠮᡠᠶᠠᡥᠠ ᡩᡝ `duration` ᠪᡝ `auto` ᠵᠠᠰᡳᠮᡝ. |
| `image_urls` | `images` | array of image URL | no |  |  | ᠰᡠᠨᡤᠠ ᠵᡠᠯᡝᠮᡝᠨᡳ ᡤᠠᠳᠠᠨ ᠪᡝ ᠠᠰᡠᠮᠪᡳ, 30 ᡤᠠᠳᠠᠨ ᡩᡝ ᠵᠠᡴᡠᠨᠠᠮᡝ, ᠵᡠᠴᡝ ᠵᠠᡴᡠᠨ ᡩᡝ 50 ᡶᡳᠯᡝ ᠪᡝ ᠠᠰᡠᠮᠪᡳ. ᡝᠮᡠ ᠠᠴᠠᠨ 30 MB ᡩᡝ ᠵᡠᠯᡝ ᠪᡝᠶᡝ, JPG, PNG, WebP, BMP, TIFF, GIF, HEIC, ᠠᠮᡝ HEIF ᠪᡝ ᠠᠰᡠᠮᠪᡳ. ᡥᡡᠯᠠᠨ ᡩᡝ @Image1, @Image2 ᠠᠮᡝ ᡳᠯᡤᠠᠨ ᡝᡵᡝ ᠵᠠᠰᡳᠮᡝ ᠠᠰᡠᠮᠪᡳ. |
| `video_urls` | `videos` | array of video URL | no |  |  | ᡶᡳᠯᡝ ᠮᡝᠨᡳ MP4 ᠠᠮᡝ MOV ᠪᡝ 10 ᠳᠠᠯᡳ ᠠᠰᡠᠮᠪᡳ. ᡥᡡᠯᠠᠨ ᡩᡝ @Video1, @Video2 ᠠᠮᡝ ᡳᠯᡤᠠᠨ ᡝᡵᡝ ᠪᡝ ᠵᠠᠰᡳᠮᡝ. ᠮᡠᠯᡥᡝ ᡶᡳᠯᡝ 200 MB ᡩᡝ ᠵᡠᠯᡝᡵᡝ ᠪᡝ ᠠᠮᡝ 1.8–30.2 ᠰᡝᡴᡠᠨᡩ; ᠵᠠᡴᡠᠨ ᠰᡠᠨᡤᠠ 30.2 ᠰᡝᡴᡠᠨᡩ ᡩᡝ ᠵᡠᠯᡝᡵᡝ. ᠵᠠᠯᠠᠨ 24–60 FPS, ᠪᡠᡵᡤᡠ 0.4–2.5, ᠵᡠᠪᡝ 300–6,000 ᡶᡳᠯᡝ ᠪᡳᠮᠪᡳ. |
| `audio_urls` | `audios` | array of audio URL | no |  |  | ᡤᡳᠰᡠᠨᡳ ᠵᠠᡴᡠᠨ ᡩᡝ 10 ᡶᡳᠯᡝ ᡩᡝ 30.2 ᠰᡝᡴᡠᠨᡩ ᠪᡝ ᠵᠠᡴᡠᠨᠠᠮᡝ. MP3 ᠠᠮᡝ WAV ᠪᡝ ᠠᠰᡠᠮᠪᡳ, 1.8–30.2 ᠰᡝᡴᡠᠨᡩ, 15 MB ᡩᡝ ᠵᡠᠯᡝᡵᡝ. ᡥᡡᠯᠠᠨ ᡩᡝ @Audio1, @Audio2 ᠠᠮᡝ ᡳᠯᡤᠠᠨ ᡝᡵᡝ ᠪᡝ ᠵᠠᠰᡳᠮᡝ. |
| `resolution` |  | enum (string) | no | `720p` | `480p`, `720p`, `1080p` | ᠪᡠᠶᡝᠮᡝᠨᡳ ᠵᠠᠯᠠᠨ: 480p ᡩᡝ ᡶᡳᠯᡝᠮᡝ ᠵᡠᠯᡝᡵᡝ, 720p ᡩᡝ ᠪᠠᠯᠠᠨᠰᡳ ᠪᡝ ᠪᡠᠶᡝᠮᡝ, 1080p ᡩᡝ ᡩᠠᡵᠠᠨ ᡤᠠᡳᠯᠠᠨ ᠪᡝ ᠪᡠᠶᡝᠮᡝ. |
| `duration` |  | enum (string) | no | `auto` | `auto`, `4`, `5`, `6`, `7`, `8`, `9`, `10`, `11`, `12`, `13`, `14`, `15`, `16`, `17`, `18`, `19`, `20`, `21`, `22`, `23`, `24`, `25`, `26`, `27`, `28`, `29`, `30` | ᠰᡠᠨᡤᠠᠨᡳ ᡝᡵᡝᠮᡝ ᠵᡠᠯᡝᠯᡝᠮᡝ: `auto` ᡥᡡᠯᠠᠨ ᠵᡠᠪᡝᠨ ᠮᠣᡩᡝᠯ ᡩᡝ ᡤᡝᠮᡠ ᠰᡝᠯᡝᠮᡝ ᠪᡠᠶᡝᠮᡝ, ᠪᡳᠯᠠᠮᡝ ᠵᠠᡴᡠᠨ ᠪᡝ 4 ᡩᡝ 30 ᠰᡝᡴᡠᠨᡩ ᡩᡝᠨ ᠪᡝᠶᡝ. |
| `aspect_ratio` |  | enum (string) | no | `auto` | `auto`, `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | ᠪᡠᠶᡝᠮᡝᠨᡳ ᠵᠠᠯᠠᠨᡳ ᠵᠠᠰᡠᠨ: 16:9 ᠵᠠᠯᠠᠨ, 9:16 ᠵᠠᠯᠠᠨᡳ ᠪᡳᠮᡝ, 1:1 ᡩᠣᠷᠣᠨ, 21:9 ᠰᡳᠨᡳᠮᡝ. `auto` ᠣᠴᡳ ᠮᠣᠳᡝᠯ ᠰᠣᠩᡤᠣᠯᠣᠮᠪᡳ. |
| `generate_audio` |  | boolean | no | `true` |  | ᠰᡠᠨᡤᠠᠨᡩᡝ ᠵᠠᠯᠠᠨᡩᠠᠮᡝᠨᡳ ᡤᡳᠰᡠᠨ ᠪᡳᠮᡝ ᠰᡠᠨᡤᠠᠨᡳ ᠨᡝᠮᡝ, ᡤᠠᠳᠠᠨᡳ ᠠᠪᡴᠠᠨ, ᠵᠠᠯᠠᠨ ᠣᠴᡳ ᠠᠮᠪᠠᠨᡳ ᡤᡳᠰᡠᠨ ᠪᡳᠮᡝ. |
| `bitrate_mode` |  | enum (string) | no | `standard` | `standard`, `high` | ᠪᡠᠶᡝᠮᡝᠨᡳ ᠮᡠᠶᠠᡥᠠ: 'standard' ᠵᡠᠯᡝ ᠪᡳᠮᡝ, 'high' ᠵᠠᠯᠠᠨ ᠵᠠᠰᡠᠨ ᠪᡳᠮᡝ ᡶᡳᠯᡝ ᠠᠮᠪᠠ. |
| `codec` |  | enum (string) | no | `auto` | `auto`, `H264`, `H265` | ᠰᡠᠨᡤᠠᠨᡳ ᠮᡠᠶᠠᡥᠠ: `auto` ᠵᡠᠯᡝ ᠪᡳᠮᡝ, `H264` H.264 ᠪᡳᠮᡝ, `H265` H.265 ᠪᡳᠮᡝ. |
| `seed` |  | integer \| null | no |  |  | ᠪᡠᠶᡝᠮᡝ ᠪᡝ ᡳᠯᡤᠠᠮᡝ ᠪᡝ ᠪᡠᠶᡝᠮᡝ ᠠᠰᡠᠮᠪᡳ; ᠵᡠᠴᡝ ᠠᠨᡳᠶᠠ ᠵᡠᠯᡝ ᠪᡝ ᠵᡠᠪᡝ ᠪᡝᠶᡝᡵᡝ ᠠᠮᡝ ᠵᠠᠰᡳᠮᡝ. |
| `end_user_id` |  | string \| null | no |  |  | ᡩᡝᡵᡝ ᠰᡠᡨᠠᡳ ᠠᠮᠪᠠ ᠪᡝ ᠵᠠᠯᠠᠨᡩᠠᠮᡝ. |

File parameters (`images`, `videos`, `audios`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.ru/v1/run/bytedance/seedance-2.5/us/reference-to-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.ru/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/bytedance/seedance-2.5/us/reference-to-video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/bytedance/seedance-2.5/us/reference-to-video", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.ru/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "bytedance/seedance-2.5/us/reference-to-video",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "bytedance/seedance-2.5/us/reference-to-video",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 6944,
    "usd": "6.944",
    "charged": 6944,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    },
    "seed": 42,
    "draft_id": "string"
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | ᠪᡠᠶᡝᠮᡝ ᠵᡠᠴᡝᠨ ᡳ ᡶᡳᠯᡝ᠉ |
| `seed` | integer | ᠪᡠᠶᡝᠮᡝ ᡩᡝ ᠶᠠᠪᡠᡥᠠᠨ ᠪᠠᠨᠵᡳᠨᠠᠮᡝ᠉ |
| `draft_id` | string \| null | ᡝᡵᡝ ᡨᡝᡵᡝ ᡝᠮᡠ ᠪᠠᠯᠠᠨᠰᡳ ᡩᡝ ᠵᡠᠯᡝᠨ ᡩᡝ ᠪᠠᡳᡨᠠᡵᠠ ᡝᡵᡝᠮᡝ ᠪᡠᠮᡝᠨᡳ ᡩᡠᡵᡝ ᠵᡠᡯᡝ ᠪᡝ ᠵᠠᠰᡳᡥᠠ ᡥᡡᠯᠠᠨ ᠪᡝ ᠵᠠᡴᡠᠨ ᠪᡠᠶᡝᠮᡝ ᠮᡠᠵᡳᠯᡝᠮᡝ ᠪᡠᠶᡝᠮᡝ ᡩᡝ ᠵᡠᠯᡝ ᠪᡝ ᠠᡵᠠᡥᠠᡴᡡ. ᡝᠮᡠ ᠵᡠᠯᡝ ᠪᡠ ᡤᡝᡪᡳᠯᡝᠨ ᡩᡝ null ᠪᡝ ᠣᠴᡳᠪᡠᠮᡝ ᠵᡠᠯᡝ ᠮᠣᡩᡝᠯ ᠪᡝ ᠪᡠᠶᡝᠮᡝ ᠠᡮᡠᠨ ᠪᡠᠶᡝᠮᡝ ᠮᡠᠵᡳᠯᡝᠮᡝ ᡩᡝ ᠪᠠᡳᠨᠠᠮᡝ ᠪᡠᠶᡝᠮᡝ. |

## Related models

- [Seedance 2.5 US Text to Video](https://doitong.com/developers/models/bytedance/seedance-2.5/us/text-to-video.md) (`bytedance/seedance-2.5/us/text-to-video`): $0.0107 / 1000 tokens
- [Seedance 2.5 US Image to Video](https://doitong.com/developers/models/bytedance/seedance-2.5/us/image-to-video.md) (`bytedance/seedance-2.5/us/image-to-video`): $0.0107 / 1000 tokens
- [Seedance 2.0 Fast Reference to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/fast/reference-to-video.md) (`bytedance/seedance-2.0/fast/reference-to-video`): from $0.113 / second
- [Seedance 2.0 Reference to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/reference-to-video.md) (`bytedance/seedance-2.0/reference-to-video`): from $0.141 / second
- [Wan 3.0 Reference to Video](https://doitong.com/developers/models/alibaba/wan-3.0/reference-to-video.md) (`alibaba/wan-3.0/reference-to-video`): from $0.05 / second
- [Seedance 2.0 Mini](https://doitong.com/developers/models/bytedance/seedance-2.0/mini/reference-to-video.md) (`bytedance/seedance-2.0/mini/reference-to-video`): $0.007 / 1000 tokens
- [Seedance 2.0 US Reference to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/us/reference-to-video.md) (`bytedance/seedance-2.0/us/reference-to-video`): from $0.0096 / 1000 tokens
- [Alibaba V2.6 · Reference to Video · Flash](https://doitong.com/developers/models/wan/v2.6/reference-to-video/flash.md) (`wan/v2.6/reference-to-video/flash`): from $0.05 / second of output video

## Links

- HTML page: https://doitong.com/developers/models/bytedance/seedance-2.5/us/reference-to-video
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=bytedance/seedance-2.5/us/reference-to-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/bytedance/seedance-2.5/us/reference-to-video