# LTX-2.3 22B Video Trainer API

> LTX-2.3 22B LoRA ᠪᡝ ᡝᠮᡠᠨᡳ ᠵᠠᠯᠠᠨ ᡳ ᠵᠠᠩ ᠪᠠ ᠵᠠᠰᠠᡤᠠᠨ ᡩᡝ ᠪᠠᠶᠠᠯᠠᠮᠪᡳ᠂ ᠵᠠᠩ ᠠᠪᡠᠮᠪᡳ

LTX-2.3 22B ᡳ ᠵᠠᠯᠠᠨ ᡳ ᠵᠠᠩ ᡩᡝ LoRA ᠪᡝ ᠵᠠᠩ ᡳ ᠵᠠᠰᠠᡤᠠᠨ ᠪᠠ ᠵᠠᠩ ᡳ ᠪᠠᠶᠠᠯᠠᠨ ᡩᡝ ᠵᠠᠩᡳ ᠵᠠᠩ ᠪᡝ ᠮᠠᠨᡳᠶᠠᠮᡝ ᠪᠠᠶᠠᠯᠠᠮᠪᡳ᠃ `number_of_steps` 100 ᠣᠴᡳ 6000 (ᠵᠠᠩ 2000)᠂ `frame_rate` ᠵᠠᠩ 25᠂ `first_frame_conditioning_p` ᠵᠠᠩ 0.5᠃ `with_audio` ᠵᠠᠩ ᡳ ᠪᡳᠮᡝ ᠵᠠᠩ ᠪᡝ ᠪᠠᠶᠠᠯᠠᠮᠪᡳ᠂ `generate_audio_in_validation` ᠪᠠᠶᠠᠯᠠᠨᡳ ᠵᠠᠩ ᡩᡝ ᠵᠠᠩ ᠪᡝ ᠵᠠᠰᠠᠮᠪᡳ᠃

- Model id: `ltx23-video-trainer`
- Made by: Lightricks
- Category: Training
- Output: file
- Price: $0.0048 / step (cheapest run $9.60 (9600 API credits))
- Run: `POST https://api.doitong.com/v1/run/ltx23-video-trainer`
- Quote: `POST https://api.doitong.com/v1/quote/ltx23-video-trainer`
- Docs page: https://doitong.com/mnc/developers/models/ltx23-video-trainer

## Pricing

Price: **$0.0048 / step**. Billed per training step (`number_of_steps`).

The full example input below costs $9.60 = 9600 API credits (2000 steps × 4.8 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.com/v1/quote/ltx23-video-trainer` 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

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `training_data_url` |  | string | yes |  |  | ᡝᠮᡠ ᡤᠠᠳᠠᠨ ᠠᠯᡳ ᡝᠮᡠ ᠰᡠᠨᡤᠠ ᠪᡝ ᡶᡳᠯᡝᠮᡝ ᠠᡩᠠᠯᡳ ᠪᡠᠮᡝᠨᡳ ZIP ᠠᡵᡴᡳᠸᡝᡳ URL᠉ ᠠᠯᠠᠮᡝ 10 ᡶᡳᠯᡝ ᠠᡩᠠᠯᡳ ᠠᠯᡳᠨᡳ ᡩᠠᡵᠠᠮᠪᡳ᠉ ᠵᡠᠯᡝ ᡳᠯᡳᠮᠪᡠᡵᡝ ᠪᡝ .png᠂ .jpg᠂ .jpeg᠂ ᠰᡠᠨᡤᠠ ᠪᡝ .mp4᠂ .mov᠂ .avi᠂ .mkv ᠣᠮᠪᡳ᠉ ᡝᠮᡠᡩᡝ ᡥᡡᠯᠠᠨᠠᠮᠪᡠᡵᡝ ᡶᡳᠯᡝ ᠵᡠᠯᡝ ᡶᡳᠯᡝᠨᡳ ᠵᠠᠯᠠᡳ ᠴᡳᠯᡤᠠᠨ ᠵᠠᡴᠠᠨ ᠪᡝ ᠠᠯᡤᡳᠮᠪᡳ᠉ |
| `rank` |  | enum (integer) | no | `32` | `8`, `16`, `32`, `64`, `128` | LoRA ᡳ ᡝᡵᡝᠮᡝ ᡳ ᡩᠠᠯᡳᠮᡝ ᡩᠠᠯᡳᠮᡝ ᡳ ᠵᡠᠯᡤᠠᠨ. |
| `number_of_steps` |  | integer | no | `2000` | 100 – 6,000 | ᡩᠠᠯᡳᠮᡝ ᡳ ᡩᠠᠯᡵᡝ ᡳ ᡩᡠᠮᡝ. |
| `learning_rate` |  | number | no | `0.0002` | 0.000001 – 1 | ᠪᡠᠶᡝᡵᡝ ᠰᡠᠶᡝᠮᡝᡳ ᠮᡝᡵᡤᡝᠨᡳ ᠵᠠᠯᠠᡵᠠᠨᡳ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ |
| `number_of_frames` |  | integer | no | `89` | 9 – 121 | ᡩᠠᠯᡳᠮᡝ ᡳ ᡳᠯᡝᠨ ᡳ ᡶᡳᠯᡝᠮᡝ ᡳ ᡩᡠᠮᡝ. 8 ᡩᡝ ᡩᠠᠯᡳᠮᡝ ᡳ ᡶᡠᠯᡤᠠᠨ 1 ᠣᠮᡝ; 1, 9, 17, 25, 33, 41, 49, 57, 65, 73, 81, 89, 97. |
| `frame_rate` |  | integer | no | `25` | 8 – 60 | ᠰᡠᠨᡤᠠᡳ ᠵᠠᠯᠠᡵᠠᠮᠪᡠᡵᡝ ᡶᡳᠯᡝᠮᡝᡳ ᠵᠠᠯᠠᠨ᠉ |
| `resolution` |  | enum (string) | no | `medium` | `low`, `medium`, `high` | ᡩᠠᠯᡳᠮᡝ ᡳ ᠵᠠᠯᠠᠨ. ᠵᠠᠯᠠᠨ ᡳ ᠠᠯᡳᠮᡝ ᡳ ᠮᡝᠮᡝᠨᡳ ᡩᠠᠯᡳᠮᡝ. |
| `aspect_ratio` |  | enum (string) | no | `1:1` | `16:9`, `1:1`, `9:16` | ᡩᠠᠯᡳᠮᡝ ᡳ ᡳᠯᡤᠠᠨ ᡳ ᡵᠠᠰᡠ. |
| `trigger_phrase` |  | string | no | `` |  | LoRA ᡳ ᡥᡡᠯᠠᠨ ᡳ ᠮᠠᠩᡤᠠ ᠵᡠᠰᡝᠨ. |
| `auto_scale_input` |  | boolean | no | `false` |  | ᠰᡠᠨᡤᠠ ᡳ FPS ᠠᠮᠠ ᡶᡳᠯᡝᠮᡝ ᡳ ᡩᡠᠮᡝ ᡩᡝ ᡝᡵᡝᠮᡝ ᠠᠯᡳᠮᡝ; ᡤᠠᠳᠠᠨ ᡳ ᡩᠠᠯᡳᠮᡝ ᠠᡴᡡ. |
| `split_input_into_scenes` |  | boolean | no | `true` |  | ᠵᠠᠯᠠᠨ ᠵᡠᠯᡝᠨᡳ ᠠᠴᠠᠨ ᠠᠮᠪᠠ ᠰᡠᠨᡤᠠ ᠵᠠᠯᠠᠨ ᠪᡝ ᠵᠠᠯᠠᠨ ᠮᡝᡳᠯᡝᠮᠪᡳ᠉ true ᠪᡝ ᠵᠠᠯᠠᠨ ᠮᡠᠶᠠᡥᠠᠨ ᠪᡝ ᠠᠯᡤᠠᠮᠪᡳ᠉ |
| `split_input_duration_threshold` |  | number | no | `30` | 1 – 60 | ᠵᡠᠯᡤᠠᠨ ᡳ ᡶᡠᠯᡤᠠᠨ ᡳ ᠵᡠᠸᠠᠨ, ᠰᡝᡴᡠᠨᡩ ᡳ ᠰᡝᠮᡝᠨ: ᡝᠯᡝᠮᡝ ᡳ ᠵᡠᠯᡤᠠᠨ ᡩᡝ ᡶᡠᠯᡤᠠᠨ. |
| `debug_dataset` |  | boolean | no | `false` |  | ᡩᠠᠯᡳᠮᡝ ᡳ ᡩᠠᠯᡳᠮᡝ ᡳ ᡤᠠᠳᠠᠨ, ᠰᡠᠨᡤᠠ, ᡥᡡᠯᠠᠨ ᡳ ᡳᠯᡝᠮᡝ ᡩᡝ ᠰᠠᠨᠠ. ᠵᡠᠰᡳᠯᡝᠮᡝ ᡳ ᡶᡳᠯᡝ ᡳ ᡩᠠᠯᡳᠮᡝ ᠵᡠᠯᡤᠠᠨ ᡳ ᡩᠠᠯᡳᠮᡝ ᡩᡝ ᡩᠠᠯᡳᠮᡝ ᠪᡠᠶᡝᠮᡝ. |
| `with_audio` |  | boolean \| null | no |  |  | ᡤᡳᠰᡠᠨᠠᠮᠪᡠᡵᡝ ᠰᡠᠨᡤᠠᡳ ᠪᡠᠶᡝᡵᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ True ᠰᡠᠨᡤᠠ ᠪᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠂ False ᡤᡳᠰᡠᠨ ᠪᡝ ᠣᠮᡳᠯᠠᠮᠪᡳ᠉ None ᠣᠮᡳᠯᠠᠮᠪᡳ᠂ ᠵᡠᠯᡝᠨᡳ ᠠᠮᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ |
| `audio_normalize` |  | boolean | no | `true` |  | ᡤᡳᠰᡠᠨᡳ ᠵᠠᠯᠠᠨ ᠪᡝ ᠠᡩᠠᠯᡳ ᠣᠮᠪᡠᡵᡝ ᠵᠠᠯᠠᠨᡳ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ |
| `audio_preserve_pitch` |  | boolean | no | `true` |  | ᡤᡳᠰᡠᠨ ᠵᠠᡴᠠᠨ ᠰᡠᠨᡤᠠ ᠵᠠᠯᠠᠨᠠᠮᠪᡠᡵᡝ ᠪᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ |
| `first_frame_conditioning_p` |  | number | no | `0.5` | 0 – 1 | ᡝᠮᡠᠨᡳ ᠵᡠᠯᡝᠨᡳ ᠵᠠᡴᠠᠨ ᡩᠠᡵᠠᠮᡝ ᠤᠨᡩᡝᠮᡝᠨᡳ ᠠᡩᠠᠯᡳᠮᠪᡳ᠉ |
| `validation` |  | array of object {prompt, image_url} | no | `[]` | ≤ 2 items | ᠵᡠᠯᡝᠨᡳ ᠠᠯᡥᠠᠨ ᡥᡡᠯᠠᠨᡳ ᠵᡠᠯᡝ ᠪᡠᠮᡝᠨᡳ ᠠᠯᡳ ᡤᠠᠳᠠᠨ ᠪᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ ᠠᠯᡳ ᠠᡴᡡ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ |
| `validation[].prompt` |  | string | yes |  |  | ᡩᠠᠯᡳᠮᡝ ᡩᡝ ᠣᠮᡝ ᡥᡡᠯᠠᠨ. |
| `validation[].image_url` |  | string (image URL) \| null | no |  |  | ᡤᠠᠳᠠᠨ ᡳᠮᠪᡳ᠉ ᠵᡠᠯᡝ ᠪᡠᠮᡝᠨᡳ ᠠᡩᠠᠯᡳ ᡤᠠᠳᠠᠨ ᠪᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ |
| `validation_negative_prompt` |  | string | no | `worst quality, inconsistent motion, blurry, jittery, distorted` |  | ᠵᡠᠯᡝᠨᡳ ᠠᡴᡡ ᡥᡡᠯᠠᠨ᠉ |
| `validation_number_of_frames` |  | integer | no | `89` | 9 – 121 | ᡩᠠᠯᡳᠮᡝ ᡳ ᡶᡳᠯᡝᠮᡝ ᡳ ᡩᡠᠮᡝ. |
| `validation_frame_rate` |  | integer | no | `25` | 8 – 60 | ᠠᠯᡥᠠᠨᠠᠮᠪᡠᡵᡝ ᠰᡠᠨᡤᠠᡳ ᡶᡳᠯᡝᠮᡝᡳ ᠵᠠᠯᠠᡵᠠᠮᠪᡠᡵᡝ ᠵᠠᠯᠠᠨ᠉ |
| `validation_resolution` |  | enum (string) | no | `high` | `low`, `medium`, `high` | ᡩᠠᠯᡳᠮᡝ ᡩᡝ ᠣᠮᡝ ᡳ ᠵᠠᠯᠠᠨ. |
| `validation_aspect_ratio` |  | enum (string) | no | `1:1` | `16:9`, `1:1`, `9:16` | ᡩᠠᠯᡳᠮᡝ ᡩᡝ ᠣᠮᡝ ᡳ ᡳᠯᡤᠠᠨ ᡳ ᡵᠠᠰᡠ. |
| `stg_scale` |  | number | no | `1` | 0 – 3 | Spatio-Temporal Guidance (STG) ᡳ ᠵᠠᠯᠠᠨ, 1.0 ᡳ ᡩᠠᠯᡳᠮᡝ, 0.0 ᡳ STG ᡳ ᠠᡴᡡ. |
| `generate_audio_in_validation` |  | boolean | no | `true` |  | ᠠᠯᡥᠠᠨ ᡤᡳᠰᡠᠨ ᠪᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ ᠠᡴᡡ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ ᠰᡠᠨᡤᠠᡳ ᠵᠠᡴᠠᠨ ᠪᡝ ᠪᡠᠶᡝᡵᡝᠮᠪᡳ᠉ |

## Example input

Required parameters only:

```json
{
  "training_data_url": "https://example.com/your-file.zip"
}
```

A fuller example:

```json
{
  "training_data_url": "https://example.com/your-file.zip"
}
```

## 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/ltx23-video-trainer?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "training_data_url": "https://example.com/your-file.zip"
  }'

# 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/ltx23-video-trainer?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "training_data_url": "https://example.com/your-file.zip"
  }),
});
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 = {
    "training_data_url": "https://example.com/your-file.zip",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/ltx23-video-trainer", 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": "ltx23-video-trainer",
      "input": {
        "training_data_url": "https://example.com/your-file.zip"
      },
      "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": "ltx23-video-trainer",
  "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": 9600,
    "usd": "9.60",
    "charged": 9600,
    "refunded": 0
  },
  "input": {
    "training_data_url": "https://example.com/your-file.zip"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    },
    "lora_file": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    },
    "config_file": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    },
    "debug_dataset": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "file",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "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} \| null | ᠠᠯᡥᠠᠨᠠᠮᠪᡠᡵᡝ ᠰᡠᠨᡤᠠᡳ URL᠉ |
| `lora_file` | object {url, content_type, file_name, file_size} | ᡩᠠᠯᡳᠮᡝ LoRA ᡳ ᡵᠠᠰᡠ URL, .safetensors ᡶᡳᠯᡝ. |
| `config_file` | object {url, content_type, file_name, file_size} | ᡩᠠᠯᡳᠮᡝ ᡳ ᠵᠠᠯᡳᠨ ᡳ ᠪᠠᡳᡵᡝᠨ ᡳ ᡶᡠᠯᡤᠠᠨ. |
| `debug_dataset` | object {url, content_type, file_name, file_size} \| null | `debug_dataset` ᠵᠠᠯᠠᡵᠠᠮᠪᡳ ᠣᠮᠳᠠᠯᠠᠨ ᠠᡴᡳᠨᡳ ᠠᡵᡴᡳᠸᡝ᠉ ᠵᡠᠯᡝ ᠵᠠᠯᠠᡵᠠᠮᠪᡠᡵᡝ ᠪᡠᠮᡝᠨᡳ ᡤᡳᠰᡠᠨ ᠪᡝ ᠰᡠᠨᡤᠠ ᠪᡝ ᡶᡳᠯᡝᠮᡝᠨᡳ ᠪᡠᠮᡝ ᠠᡩᠠᠯᡳᠮᠪᡳ᠉ |

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## Links

- HTML page: https://doitong.com/developers/models/ltx23-video-trainer
- 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=ltx23-video-trainer
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/ltx23-video-trainer