# LTX-2.3 22B Distilled · Reference Video to Video API

> דיסטילירטע רעפֿערענץ־ווידעאָ־גענעראַציע מיט טיפקייַט-, קאַנטי- אָדער פּאָזע־פּרעפּראָסעסינג און אויסקלייב פֿון IC LoRA טיפּ

נוצט אַ רעפֿערענץ `video_url` און `prompt`, מיט אָפּציאָנעלע `audio_url`, `image_url` און `end_image_url`. `preprocessor` קען זײַן טיפֿקייט־מאַפּע, canny, פּאָזע אָדער none, און `ic_lora_type` קלײַבט match_preprocessor, union, detailer אָדער none. `video_strength` און `audio_strength` (0 צו 1) באַשטימען וויפֿל דער מאָדעל מעג ענדערן דעם אינהאַלט.

- Model id: `ltx-2.3-22b/distilled/reference-video-to-video`
- Made by: Lightricks
- Category: Video to Video
- Output: video
- Price per megapixel of your output video: $0.00121 / megapixel of output video (cheapest run $0.002 (2 API credits))
- Run: `POST https://api.doitong.ru/v1/run/ltx-2.3-22b/distilled/reference-video-to-video`
- Quote: `POST https://api.doitong.ru/v1/quote/ltx-2.3-22b/distilled/reference-video-to-video`
- Docs page: https://doitong.com/yi/developers/models/ltx-2.3-22b/distilled/reference-video-to-video

## Pricing

Price: **$0.00121 / megapixel of output video**. Price per megapixel 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.

The full example input below costs $0.34 = 340 API credits (282 MP output video × $0.001205).

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/ltx-2.3-22b/distilled/reference-video-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 |  |  | פּראָמפּט גענוצט ווי באַזע פֿאַר ווידעא־גענערירונג. |
| `video_url` | `video` | string (video URL) | yes |  |  | URL וואָס אידענטיפֿיצירט דעם רעפֿערענץ־ווידעא. |
| `audio_url` | `audio` | string (audio URL) \| null | no |  |  | אָפּציאָנאַלער אַודיאָ־URL וואָס גיט דעם ווידעא זײַן אַודיאָ־טראַק. אויב אויסגעלאָזט, ווערט גענוצט אַודיאָ פֿון דעם מקור־ווידעא, אויב עס איז דאָ. |
| `image_url` | `image` | string (image URL) \| null | no |  |  | אָפּציאָנאַלער בילד־URL וואָס דעפֿינירט דעם עפֿענונגס־ראַם פֿונעם ווידעא. |
| `end_image_url` | `end_image` | string (image URL) \| null | no |  |  | בילד־URL וואָס דעפֿינירט דעם ענד־ראַם פֿונעם ווידעא. |
| `match_video_length` |  | boolean | no | `true` |  | ראַם־צאָל־מאָדוס: אויסגעלאָשן ניצט `num_frames`, בעת אָנגעצונדן רעכנט ער די צאָל אויס מיט FPS און ווידעא־דויער. |
| `num_frames` |  | integer | no | `121` | 9 – 481 | ראַם־צאָל פונעם גענערירטן רעזולטאַט. |
| `video_size` |  | object {width, height} \| enum (string) | no | `auto` | `auto`, `square_hd`, `square`, `portrait_4_3`, `portrait_16_9`, `landscape_4_3`, `landscape_16_9` | דימענסיעס פֿון דעם גענערירטן ווידעא. |
| `generate_audio` |  | boolean | no | `true` |  | קאָנטראָלירט צי דער ווידעא נעמט אַרײַן גענערירטן אַודיאָ. |
| `use_multiscale` |  | boolean | no | `true` |  | מולטי־סקאַל־גענערירונג פֿאַר בעסערע קאָהערענץ און דעטאַל. מיט True פֿירט אַ קלענערער ערשטיקער ווידעא צו אַ צווייטער גענערירונג, וועמענס גרייס דערגרייכט אָדער איבערשטייגט די געבעטן דימענסיעס. |
| `match_input_fps` |  | boolean | no | `true` |  | איבערשרײַבונג פֿון דער רעזולטאַט־ראַם־קורס, וואָס ערזעצט דעם סטאַנדאַרט־ציל־FPS מיטן מקור־ווידעאָס FPS ווען אָנגעצונדן. |
| `fps` |  | number | no | `24` | 1 – 60 | די ראַם־אָפֿטקייט פֿונעם רעזולטאַט־ווידעא, געמאָסטן אין ראַמען פּער סעקונדע. |
| `scheduler` |  | enum (string) | no | `ltx2` | `ltx2`, `linear_quadratic`, `beta` | Scheduler־אויסקלײַב. |
| `acceleration` |  | enum (string) | no | `none` | `none`, `regular`, `high`, `full` | אַקסעלעראַציע־ניוואָ געווענדט צו פּראַסעסירונג. |
| `camera_lora` |  | enum (string) | no | `none` | `dolly_in`, `dolly_out`, `dolly_left`, `dolly_right`, `jib_up`, `jib_down`, `static`, `none` | קאַמעראַ LoRA־אויסקלײַב פֿאַר מער גענויע קאָנטראָל איבער באַוועגונג אינעם גענערירטן ווידעא ווי בלויז קאַמעראַ־באַוועגונג־פּראָמפּטס. |
| `camera_lora_scale` |  | number | no | `1` | 0 – 1 | קאַמעראַ LoRA־שטאַרקייט פֿאַר מער גענויע קאָנטראָל איבער באַוועגונג אינעם גענערירטן ווידעא ווי בלויז קאַמעראַ־באַוועגונג־פּראָמפּטס. |
| `negative_prompt` |  | string | no | `news broadcast, 3d animation, computer graphics, pc game, console game, video game, cartoon, childish, watermark, logo, text, on screen text, subtitles, titles, signature, slowmo, static` |  | נעגאַטיווער פּראָמפּט וואָס ווערט גענוצט בעת ווידעא־גענערירונג. |
| `seed` |  | integer \| null | no |  |  | גרעין־ווערט וואָס איניציאַליזירט ראַנדאָם־צאָל־גענערירונג. |
| `enable_prompt_expansion` |  | boolean | no | `true` |  | קאָנטראָלירט צי פּראָמפּט־יקספּאַנשאַן איז אַקטיווירט. |
| `enable_safety_checker` |  | boolean | no | `true` |  | קאָנטראָלירט צי זיכערהייט־קאָנטראָל זאָל זײַן אַקטיוו. |
| `video_output_type` |  | enum (string) | no | `X264 (.mp4)` | `X264 (.mp4)`, `VP9 (.webm)`, `PRORES4444 (.mov)`, `GIF (.gif)` | רעזולטאַט־טיפּ פֿאַרן רעזולטירנדיקן ווידעא. |
| `video_quality` |  | enum (string) | no | `high` | `low`, `medium`, `high`, `maximum` | קוואַליטעט־ניוואָ פֿאַרן רעזולטירנדיקן ווידעא. |
| `video_write_mode` |  | enum (string) | no | `balanced` | `fast`, `balanced`, `small` | שרײַב־מאָדע פֿאַרן רעזולטירנדיקן ווידעא. |
| `distill_lora_second_pass_scale` |  | number | no | `0.5` | 0 – 1 | קאָנטראָלירט די distill LoRA־סקאַלירונג פֿאַר יעדן פּאַס נאָך דעם ערשטן. |
| `video_strength` |  | number | no | `1` | 0 – 1 | די פֿרײַהייט צו ענדערן ווידעא־אינהאַלט ווערט קאָנטראָלירט דורך דער קאַנדיציאָנירונג־שטאַרקייט: קלענערע באַשטימונגען געבן דעם מאָדעל מער פֿרײַהייט. |
| `audio_strength` |  | number | no | `1` | 0 – 1 | די פֿרײַהייט צו ענדערן אַודיאָ־אינהאַלט ווערט קאָנטראָלירט דורך דער קאַנדיציאָנירונג־שטאַרקייט: קלענערע באַשטימונגען געבן דעם מאָדעל מער פֿרײַהייט. |
| `preprocessor` |  | enum (string) | no | `none` | `depth`, `canny`, `pose`, `none` | פּרעפּראָסעסער וואָס ווערט געווענדט בעת גענערירונג. |
| `ic_lora_type` |  | enum (string) | no | `union` | `match_preprocessor`, `union`, `detailer`, `none` | IC LoRA־וואַריאַנט וואָס ווערט געווענדט בעת גענערירונג. |

File parameters (`video`, `audio`, `image`, `end_image`) 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",
  "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

## 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/ltx-2.3-22b/distilled/reference-video-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",
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# 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/ltx-2.3-22b/distilled/reference-video-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",
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }),
});
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",
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/ltx-2.3-22b/distilled/reference-video-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": "ltx-2.3-22b/distilled/reference-video-to-video",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
      },
      "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": "ltx-2.3-22b/distilled/reference-video-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": 340,
    "usd": "0.34",
    "charged": 340,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "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,
    "prompt": "black-and-white video, a cowboy walks through a dusty town, film grain"
  },
  "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, width, height, fps, duration, num_frames} | ווידעא געשאַפֿן דורכן מאָדעל. |
| `seed` | integer | Seed־ווערט וואָס ווערט גענוצט צו איניציאַליזירן צופֿעליקע צאָל־גענערירונג. |
| `prompt` | string | פּראָמפּט וואָס גיידט די גענערירונג. |

## Related models

- [LTX-2.3 22B Distilled · Text to Video](https://doitong.com/developers/models/ltx-2.3-22b/distilled/text-to-video.md) (`ltx-2.3-22b/distilled/text-to-video`): $0.00121 / megapixel of output video
- [LTX-2.3 22B Distilled · Text to Video · LoRA](https://doitong.com/developers/models/ltx-2.3-22b/distilled/text-to-video/lora.md) (`ltx-2.3-22b/distilled/text-to-video/lora`): $0.00141 / megapixel of output video
- [LTX-2.3 22B Distilled · Image to Video](https://doitong.com/developers/models/ltx-2.3-22b/distilled/image-to-video.md) (`ltx-2.3-22b/distilled/image-to-video`): $0.00121 / megapixel of output video
- [LTX-2.3 22B Distilled · Image to Video · LoRA](https://doitong.com/developers/models/ltx-2.3-22b/distilled/image-to-video/lora.md) (`ltx-2.3-22b/distilled/image-to-video/lora`): $0.00141 / megapixel of output video
- [LTX-2.3 22B Distilled · Reference Video to Video · LoRA](https://doitong.com/developers/models/ltx-2.3-22b/distilled/reference-video-to-video/lora.md) (`ltx-2.3-22b/distilled/reference-video-to-video/lora`): $0.00141 / megapixel of output video
- [LTX-2.3 22B Distilled · Video to Video](https://doitong.com/developers/models/ltx-2.3-22b/distilled/video-to-video.md) (`ltx-2.3-22b/distilled/video-to-video`): $0.00121 / megapixel of output video
- [LTX-2.3 22B Distilled · Video to Video · LoRA](https://doitong.com/developers/models/ltx-2.3-22b/distilled/video-to-video/lora.md) (`ltx-2.3-22b/distilled/video-to-video/lora`): $0.00141 / megapixel of output video
- [LTX-2.3 22B Distilled · Audio to Video](https://doitong.com/developers/models/ltx-2.3-22b/distilled/audio-to-video.md) (`ltx-2.3-22b/distilled/audio-to-video`): $0.00121 / megapixel of output video

## Links

- HTML page: https://doitong.com/developers/models/ltx-2.3-22b/distilled/reference-video-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=ltx-2.3-22b/distilled/reference-video-to-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/ltx-2.3-22b/distilled/reference-video-to-video