# Seedance 2.0 Reference to Video API

> Huongoza klipu ya sekunde 4 hadi 15 yenye sauti kutoka kwa picha 9, video 3 na klipu za sauti 3 zinazorejelewa kwa majina.

Modeli ya video ya marejeo mengi ya ByteDance: pakia wahusika, bidhaa, maeneo, marejeo ya mwendo au kamera na klipu ya sauti au muziki, kisha yatumie kwenye kidokezo kama @Image1, @Video1, @Audio1 na kuendelea. Huhifadhi utambulisho kuwa thabiti kati ya vipande na huzalisha sauti iliyosawazishwa. Angalau marejeo moja ya picha au video inahitajika na marejeo yote kwa pamoja hayapaswi kuzidi faili 12. Tokeo ni kuanzia 480p hadi 4K.

- Model id: `bytedance/seedance-2.0/reference-to-video`
- Made by: ByteDance
- Category: Reference to Video
- Output: video
- Price: from $0.141 / second (4 s ≈ $0.564) (cheapest run $0.564 (564 API credits))
- Run: `POST https://api.doitong.ru/v1/run/bytedance/seedance-2.0/reference-to-video`
- Quote: `POST https://api.doitong.ru/v1/quote/bytedance/seedance-2.0/reference-to-video`
- Docs page: https://doitong.com/sw/developers/models/bytedance/seedance-2.0/reference-to-video

## Pricing

Price: **from $0.141 / second (4 s ≈ $0.564)** (the lowest tier; the quote prices your exact input). Billed per second of output (`duration`, default 15).

Price rules (the first rule that matches the input wins; a parameter you leave out counts as its default):

- When `video_urls` is set and `duration` ≤ 4: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 5: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 6: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 7: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 8: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 9: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 10: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 11: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 12: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 13: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set and `duration` ≤ 14: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `video_urls` is set: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second
- When `resolution` is 480p, 720p, 1080p, 4k: by `resolution`, 480p: $0.141, 720p: $0.304, 1080p: $0.682, 4k: $1.556 / second

The full example input below costs $1.52 = 1520 API credits (5 s × 304 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/bytedance/seedance-2.0/reference-to-video` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. 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 | yes |  |  | Kidokezo cha maandishi kinachoelekeza uzalishaji wa video. |
| `image_urls` | `images` | array of image URL | no |  | ≤ 9 items | Marejeleo ya picha kwa mwongozo wa video, yenye kikomo cha picha 9 na upeo wa faili 12 katika aina zote. Kila picha inaweza kuwa na ukubwa wa hadi 30 MB na lazima itumie JPEG, PNG, au WebP. Tumia @Image1, @Image2, na lebo zinazofuata zenye nambari kutambua marejeleo haya katika kidokezo. |
| `video_urls` | `videos` | array of video URL | no |  | ≤ 3 items | Marejeleo ya video kwa uzalishaji, yanayotolewa kama faili za MP4 au MOV na kutambuliwa katika kidokezo kwa @Video1, @Video2, na lebo zinazofuata zenye nambari. Kila moja lazima iwe na mwonekano wa takriban 480p (640x640) hadi takriban 720p (834x1112). Seti ina kikomo cha video 3 zenye jumla ya chini ya 50 MB, na muda wa jumla wa sekunde 2 hadi 15. |
| `audio_urls` | `audios` | array of audio URL | no |  | ≤ 3 items | Marejeleo ya sauti kwa mwongozo wa video yanahitaji angalau rejeleo moja la picha au video linaloandamana. Toa faili za MP3 au WAV zenye ukubwa wa hadi 15 MB kila moja, zisizozidi faili 3 na muda wa jumla wa hadi sekunde 15. Zitambue katika kidokezo kwa @Audio1, @Audio2, na lebo zinazofuata zenye nambari. |
| `resolution` |  | enum (string) | no | `720p` | `480p`, `720p`, `1080p`, `4k` | Mwonekano wa tokeo: 480p hupendelea kasi, 720p hutoa uwiano, 1080p hutoa ubora wa juu, na 4k hutoa ubora wa juu zaidi. |
| `duration` |  | enum (string) | no | `auto` | `auto`, `4`, `5`, `6`, `7`, `8`, `9`, `10`, `11`, `12`, `13`, `14`, `15` | Uteuzi wa urefu wa video: `auto` hukabidhi chaguo kwa modeli kwa kutumia kidokezo, huku muda ulioainishwa lazima uwe kati ya sekunde 4 hadi 15. |
| `aspect_ratio` |  | enum (string) | no | `auto` | `auto`, `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | Uwiano wa picha wa tokeo: 16:9 hutoa mlalo, 9:16 hutoa picha wima, 1:1 hutoa mraba, na 21:9 hutoa mwonekano mpana wa sinema. Chagua `auto` ili modeli ichague uwiano. |
| `generate_audio` |  | boolean | no | `true` |  | Washa hii ili video iambatane na sauti iliyosawazishwa. Sauti iliyozalishwa inajumuisha usemi unaolingana na miondoko ya midomo, mandhari ya mazingira na athari za sauti. |
| `bitrate_mode` |  | enum (string) | no | `standard` | `standard`, `high` | Chagua kiwango cha biti cha usimbaji wa tokeo: 'standard' huhifadhi chaguo chaguomsingi, ilhali 'high' huiomba modeli kuboresha ubora wa usimbaji kwa gharama ya faili kubwa zaidi. |
| `codec` |  | enum (string) | no | `auto` | `auto`, `H264`, `H265` | Uteuzi wa kodeki ya video: `auto` huacha tabia ya kodeki chaguomsingi bila kubadilika, `H264` huchagua H.264, na `H265` huchagua H.265. |

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
{
  "prompt": "@Image1 The banana manager walks through the office and high-fives the carrot, upbeat comedy tone"
}
```

A fuller example:

```json
{
  "prompt": "@Image1 The banana manager walks through the office and high-fives the carrot, upbeat comedy tone",
  "images": [
    "https://content.doitong.com/images/gp/image_20260610003801_541d9719_316882.png"
  ],
  "resolution": "720p",
  "duration": 5
}
```

## 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-2.0/reference-to-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "@Image1 The banana manager walks through the office and high-fives the carrot, upbeat comedy tone",
    "images": [
      "https://content.doitong.com/images/gp/image_20260610003801_541d9719_316882.png"
    ],
    "resolution": "720p",
    "duration": 5
  }'

# 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-2.0/reference-to-video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "@Image1 The banana manager walks through the office and high-fives the carrot, upbeat comedy tone",
    "images": [
      "https://content.doitong.com/images/gp/image_20260610003801_541d9719_316882.png"
    ],
    "resolution": "720p",
    "duration": 5
  }),
});
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": "@Image1 The banana manager walks through the office and high-fives the carrot, upbeat comedy tone",
    "images": [
        "https://content.doitong.com/images/gp/image_20260610003801_541d9719_316882.png",
    ],
    "resolution": "720p",
    "duration": 5,
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/bytedance/seedance-2.0/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-2.0/reference-to-video",
      "input": {
        "prompt": "@Image1 The banana manager walks through the office and high-fives the carrot, upbeat comedy tone",
        "images": [
          "https://content.doitong.com/images/gp/image_20260610003801_541d9719_316882.png"
        ],
        "resolution": "720p",
        "duration": 5
      },
      "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-2.0/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": 1520,
    "usd": "1.52",
    "charged": 1520,
    "refunded": 0
  },
  "input": {
    "prompt": "@Image1 The banana manager walks through the office and high-fives the carrot, upbeat comedy tone",
    "images": [
      "https://content.doitong.com/images/gp/image_20260610003801_541d9719_316882.png"
    ],
    "resolution": "720p",
    "duration": 5
  },
  "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
  },
  "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} | Faili ya video iliyozalishwa. |
| `seed` | integer | Thamani ya seed inayotumika wakati wa uzalishaji. |

## Related models

- [Seedance 2.0 Fast Text to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/fast/text-to-video.md) (`bytedance/seedance-2.0/fast/text-to-video`): from $0.113 / second
- [Seedance 2.0 Mini Text to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/mini/text-to-video.md) (`bytedance/seedance-2.0/mini/text-to-video`): from $0.0721 / second
- [Seedance 2.0 Text to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/text-to-video.md) (`bytedance/seedance-2.0/text-to-video`): from $0.141 / second
- [Seedance 2.0 Fast Image to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/fast/image-to-video.md) (`bytedance/seedance-2.0/fast/image-to-video`): from $0.113 / second
- [Seedance 2.0 Image to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/image-to-video.md) (`bytedance/seedance-2.0/image-to-video`): from $0.141 / second
- [Seedance 2.0 Mini Image to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/mini/image-to-video.md) (`bytedance/seedance-2.0/mini/image-to-video`): from $0.0721 / second
- [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 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

## Links

- HTML page: https://doitong.com/developers/models/bytedance/seedance-2.0/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-2.0/reference-to-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/bytedance/seedance-2.0/reference-to-video