# Alibaba V2.6 · Reference to Video · Flash API

> Hitra pretvorba referenc v videoposnetek, ki ohrani predmete iz največ 5 slik ali posnetkov, dolgih 5 ali 10 sekund, z zvokom

Ustvari videoposnetek, v katerem se predmeti iz referenčnih datotek v `prompt` pojavijo kot Character1, Character2 in tako naprej. Združite lahko največ 3 `video_urls` in 5 `image_urls`, skupaj največ 5 referenc. Trajanje je 5 ali 10 sekund, ločljivost 720p ali 1080p, razmerje stranic pa 16:9, 9:16, 1:1, 4:3 ali 3:4. Večposnetkovne prompte in ustvarjanje zvoka lahko vklopite.

- Model id: `wan/v2.6/reference-to-video/flash`
- Made by: Alibaba
- Category: Reference to Video
- Output: video
- Price per second of your output video: from $0.05 / second of output video (cheapest run $0.05 (50 API credits))
- Run: `POST https://api.doitong.com/v1/run/wan/v2.6/reference-to-video/flash`
- Quote: `POST https://api.doitong.com/v1/quote/wan/v2.6/reference-to-video/flash`
- Docs page: https://doitong.com/sl/developers/models/wan/v2.6/reference-to-video/flash

## Pricing

Price: **from $0.05 / second of output video** (the lowest tier; the quote prices your exact input). Price per second of your output video: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

Price by tier:

- 720p, silent: $0.05 / second of output video
- 1080p, silent: $0.075 / second of output video
- 720p: $0.10 / second of output video
- 1080p: $0.15 / second of output video

The full example input below costs $0.75 = 750 API credits (5 s output video × $0.15 (1080p)).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/wan/v2.6/reference-to-video/flash` 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 |  | ≥ 1 characters | Poziv za video z največ 1500 znaki, ki uporablja Character1, Character2 itd. za prepoznavanje ljudi, živali ali predmetov v referenčnih datotekah. Oštevilčenje subjektov sledi video_urls, nato image_urls. Za več posnetkov uporabite: '[0-3s] Shot 1. [3-6s] Shot 2.' |
| `video_urls` | `videos` | array of video URL \| null | no |  |  | Podajte 0–3 videe za ohranjanje doslednosti subjektov; vsak mora imeti najmanj 16 FPS, trajati od 2 do 30 sekund in biti velik največ 100 MB. Skupno število v video_urls in image_urls ne sme preseči 5. Samodejno oštevilčenje subjektom v video_urls dodeli Character1, Character2 itd., nato nadaljuje z image_urls. |
| `image_urls` | `images` | array of image URL \| null | no |  |  | Podajte 0–5 slik za ohranjanje doslednosti subjektov; skupno število referenc v image_urls in video_urls ne sme preseči 5, slike pa prejmejo številke subjektov za videi. Vsaka slika mora imeti ločljivost od 240 do 5000px in velikost največ 10 MB. Sprejeti formati so JPEG, JPG, BMP, WEBP in PNG brez alfe. |
| `aspect_ratio` |  | enum (string) | no | `16:9` | `16:9`, `9:16`, `1:1`, `4:3`, `3:4` | Razmerje stranic izhodnega videa. |
| `resolution` |  | enum (string) | no | `1080p` | `720p`, `1080p` | Raven ločljivosti izhoda videa; R2V Flash sprejema samo 720p ali 1080p. |
| `duration` |  | enum (string) | no | `5` | `5`, `10` | Nastavite trajanje ustvarjenega videa v sekundah. Za R2V Flash sta na voljo le dolžini 5 in 10 sekund. |
| `negative_prompt` |  | string \| null | no | `` |  | Negativni poziv, ki določa neželeno vsebino; omejen je na 500 znakov. |
| `enable_prompt_expansion` |  | boolean | no | `true` |  | Določa, ali LLM prepiše poziv. |
| `multi_shots` |  | boolean | no | `true` |  | Nadzor segmentacije posnetkov, na voljo samo, če je enable_prompt_expansion nastavljena na True. Privzeta vrednost true uporablja inteligentno segmentacijo za ustvarjanje povezane pripovedi čez posnetke; false ohrani video kot en neprekinjen posnetek. |
| `generate_audio` |  | boolean | no | `true` |  | Izberite ustvarjanje videa brez zvoka z false ali omogočite zvok, da ga vključite v ustvarjeni video. |
| `seed` |  | integer \| null | no |  |  | Seme, ki omogoča ponovljivo generiranje. Če ga nastavite na None, se seme izbere naključno. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Preklop preverjanja varnosti, pri katerem izklopljena nastavitev zahteva avtorizacijo računa. Brez te avtorizacije se vsaka zahteva preveri ne glede na nastavitev; true omogoči preverjanje. |

File parameters (`videos`, `images`) 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": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

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.com/v1/run/wan/v2.6/reference-to-video/flash?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.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/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/wan/v2.6/reference-to-video/flash?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.com/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/wan/v2.6/reference-to-video/flash", 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.com/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": "wan/v2.6/reference-to-video/flash",
      "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": "wan/v2.6/reference-to-video/flash",
  "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": 750,
    "usd": "0.75",
    "charged": 750,
    "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,
      "width": 1024,
      "height": 768,
      "fps": 1.0,
      "duration": 5,
      "num_frames": 1
    },
    "seed": 42,
    "actual_prompt": "Dance battle between Character1 and Character2, cinematic lighting, dynamic camera movement."
  },
  "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.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size, width, height, fps, duration, num_frames} | Končna video datoteka. |
| `seed` | integer | Vrednost semena, uporabljena med generiranjem. |
| `actual_prompt` | string \| null | Poziv, dejansko uporabljen pri omogočenem prepisovanju. |

## Related models

- [Wan v2.6 Text to Image](https://doitong.com/developers/models/wan/v2.6/text-to-image.md) (`wan/v2.6/text-to-image`): $0.03 / image
- [Wan v2.6 Image to Image](https://doitong.com/developers/models/wan/v2.6/image-to-image.md) (`wan/v2.6/image-to-image`): $0.03 / image
- [Wan v2.6 Text to Video](https://doitong.com/developers/models/wan/v2.6/text-to-video.md) (`wan/v2.6/text-to-video`): from $0.10 / second
- [Wan v2.6 Image to Video](https://doitong.com/developers/models/wan/v2.6/image-to-video.md) (`wan/v2.6/image-to-video`): from $0.10 / second
- [Wan v2.6 Reference to Video](https://doitong.com/developers/models/wan/v2.6/reference-to-video.md) (`wan/v2.6/reference-to-video`): from $0.10 / 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 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

## Links

- HTML page: https://doitong.com/developers/models/wan/v2.6/reference-to-video/flash
- 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=wan/v2.6/reference-to-video/flash
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/wan/v2.6/reference-to-video/flash