# Seedance 2.5 US Reference to Video API

> Ġenerazzjoni, editjar u estensjoni ta’ vidjo ta’ referenza Seedance 2.5 minn sa 30 immaġni, 10 vidjows u 10 awdios

Setting `task` jaqleb bejn ġenerazzjoni ggwidata minn referenza, editjar ta’ vidjo ta’ referenza u estensjoni tiegħu. Jaċċetta sa 30 immaġni, 10 vidjows u 10 fajls awdjo bħala referenzi, imsemmija bħala @Image1 u simili. Jipproduċi 480p, 720p jew 1080p, awtomatikament jew minn 4 sa 30 sekonda, bi proporzjonijiet tal-aspett minn 21:9 sa 9:16. Jappoġġja `seed` u `bitrate_mode`.

- 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/mt/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 |  |  | Prompt testwali li jiggwida l-ġenerazzjoni tal-vidjo. |
| `task` |  | enum (string) | no | `reference` | `reference`, `editing`, `extension` | Għażla tal-kompitu tal-vidjo bi tliet imġibiet: `reference` tiggwida l-ġenerazzjoni billi tuża media pprovduta, editing jibdel vidjo ta’ referenza, u extension ikompli wieħed. Kemm editing kif ukoll extension jistabbilixxu awtomatikament `aspect_ratio` għal `auto`; editing jistabbilixxi wkoll `duration` għal `auto`. |
| `image_urls` | `images` | array of image URL | no |  |  | Referenzi tal-immaġni għall-gwida tal-vidjo, limitati għal 30 immaġni u soġġetti għal massimu ta’ 50 fajl fil-modalitajiet kollha. Kull immaġni tista’ tkun sa 30 MB u għandha tuża JPG, PNG, WebP, BMP, TIFF, GIF, HEIC jew HEIF. Uża @Image1, @Image2 u tikketti numerati sussegwenti biex tidentifika dawn ir-referenzi fil-prompt. |
| `video_urls` | `videos` | array of video URL | no |  |  | Ipprovdi sa 10 vidjows ta’ referenza bħala fajls MP4 jew MOV biex jiggwidaw il-ġenerazzjoni, u identifikahom fil-prompt b’@Video1, @Video2 u tikketti numerati sussegwenti. Kull fajl ma għandux jaqbeż 200 MB u għandu jdum 1.8–30.2 sekonda, bit-total tal-klipps ma jaqbiżx 30.2 sekonda. Il-proprjetajiet meħtieġa tal-vidjo huma 24–60 FPS, proporzjon tal-aspett ta’ 0.4–2.5, u 300–6,000 pixels fuq kull naħa. |
| `audio_urls` | `audios` | array of audio URL | no |  |  | Ir-referenzi tal-awdjo għall-gwida tal-vidjo għandhom limitu ta’ tul aggregat ta’ 30.2 sekonda fuq massimu ta’ 10 fajls. Kull wieħed għandu juża MP3 jew WAV, idum 1.8–30.2 sekonda u jkun ta’ mhux aktar minn 15 MB. Identifika l-fajls fil-prompt b’@Audio1, @Audio2 u tikketti numerati sussegwenti. |
| `resolution` |  | enum (string) | no | `720p` | `480p`, `720p`, `1080p` | Riżoluzzjoni tal-output: 480p tiffavorixxi l-veloċità, 720p tipprovdi bilanċ, u 1080p tagħti kwalità għolja. |
| `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` | Għażla tat-tul tal-vidjo: `auto` tiddelega l-għażla lill-mudell billi juża l-prompt, filwaqt li tul espliċitu għandu jkun bejn 4 u 30 sekonda. |
| `aspect_ratio` |  | enum (string) | no | `auto` | `auto`, `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | Proporzjon tal-aspett tal-output: 16:9 jagħti pajsaġġ, 9:16 jagħti ritratt/vertikali, 1:1 jagħti kwadru, u 21:9 jagħti ultrawide ċinematografiku. Agħżel `auto` biex il-mudell jagħżel il-proporzjon. |
| `generate_audio` |  | boolean | no | `true` |  | Ippermetti dan biex takkumpanja l-vidjo b’awdjo sinkronizzat. L-awdjo ġġenerat jinkludi diskors imqabbel mal-movimenti tax-xufftejn, ambjent u effetti tal-ħoss. |
| `bitrate_mode` |  | enum (string) | no | `standard` | `standard`, `high` | Agħżel il-bitrate tal-kodifikazzjoni tal-output: 'standard' iżomm il-valur prestabbilit, filwaqt li 'high' jitlob lill-mudell itejjeb il-kwalità tal-kodifikazzjoni bi spiża ta’ fajl akbar. |
| `codec` |  | enum (string) | no | `auto` | `auto`, `H264`, `H265` | Għażla tal-codec tal-vidjo: `auto` tħalli l-imġiba prestabbilita tal-codec mhux mibdula, `H264` tagħżel H.264, u `H265` tagħżel H.265. |
| `seed` |  | integer \| null | no |  |  | Seed każwali użat biex il-ġenerazzjoni tkun riproduċibbli, mingħajr garanzija ta’ ripetizzjoni eżatta: l-użu mill-ġdid tiegħu xorta jista’ jipproduċi riżultati kemxejn differenti. |
| `end_user_id` |  | string \| null | no |  |  | Identifikatur uniku assenjat lill-utent finali. |

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} | Fajl vidjo prodott mill-ġenerazzjoni. |
| `seed` | integer | Valur ta’ seed applikat waqt il-ġenerazzjoni. |
| `draft_id` | string \| null | Identifikatur tal-abbozz għat-tlestija taħt l-istess kont fi żmien sebat ijiem; it-tweġiba fiha null minflok jekk il-modalità tal-abbozz tkun diżattivata. |

## 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