# LTX 2.5 Pro Text to Video API

> Lightricks의 LTX 2.5 Pro로 오디오와 이름이 지정된 카메라 이동을 포함한 6 to 10초 클립을 최대 1080p 및 50 fps로 생성

LTX 2.5 Pro는 생성 오디오와 함께 선명한 720p 또는 1080p 동영상을 렌더링하며, 카메라 이동을 직접 설명하는 대신 이름이 지정된 카메라 이동 (dolly in 또는 out, sideways dolly, jib up 또는 down, static, focus shift)을 선택할 수 있습니다. 6, 8 또는 10 초 또는 자동 길이, 24, 25 또는 50 fps, 가로 또는 세로를 지원합니다.

- Model id: `lightricks/ltx-2.5/text-to-video/pro`
- Made by: Lightricks
- Category: Text to Video
- Output: video
- Price: from $0.12 / second (6 s ≈ $0.72) (cheapest run $0.72 (720 API credits))
- Run: `POST https://api.doitong.ru/v1/run/lightricks/ltx-2.5/text-to-video/pro`
- Quote: `POST https://api.doitong.ru/v1/quote/lightricks/ltx-2.5/text-to-video/pro`
- Docs page: https://doitong.com/ko/developers/models/lightricks/ltx-2.5/text-to-video/pro

## Pricing

Price: **from $0.12 / second (6 s ≈ $0.72)** (the lowest tier; the quote prices your exact input). Billed per second of output (`duration`, default 10).

The full example input below costs $1.02 = 1020 API credits (6 s × 170 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/lightricks/ltx-2.5/text-to-video/pro` 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 |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  | 1 – 5000 characters | 동영상 생성을 안내하는 프롬프트입니다. |
| `duration` |  | enum | no | `auto` | `6`, `8`, `10`, `auto` | 동영상 길이 선택입니다. 초 단위로 지정하거나 모델이 결정하도록 'auto'를 선택합니다. 최대 길이는 10초입니다. |
| `resolution` |  | enum (string) | no | `1080p` | `720p`, `1080p` | 출력 동영상에 사용되는 해상도입니다. |
| `aspect_ratio` |  | enum (string) | no | `16:9` | `16:9`, `9:16` | 출력 동영상의 가로세로 비율입니다. |
| `fps` |  | enum (integer) | no | `25` | `24`, `25`, `50` | 초당 프레임 수로 측정되는 출력 동영상 프레임 속도입니다. |
| `generate_audio` |  | boolean | no | `true` |  | 출력 동영상의 오디오 생성 토글입니다. |
| `camera_motion` |  | enum (string) \| null | no |  | `dolly_in`, `dolly_out`, `dolly_left`, `dolly_right`, `jib_up`, `jib_down`, `static`, `focus_shift` | 출력 동영상의 선택적 카메라 움직임입니다. |

## Example input

Required parameters only:

```json
{
  "prompt": "Through a sheer red veil, a bride smiles as marigold petals fall around her, warm evening light"
}
```

A fuller example:

```json
{
  "prompt": "Through a sheer red veil, a bride smiles as marigold petals fall around her, warm evening light",
  "duration": 6,
  "resolution": "1080p",
  "camera_motion": "dolly_in"
}
```

## 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/lightricks/ltx-2.5/text-to-video/pro?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Through a sheer red veil, a bride smiles as marigold petals fall around her, warm evening light",
    "duration": 6,
    "resolution": "1080p",
    "camera_motion": "dolly_in"
  }'

# 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/lightricks/ltx-2.5/text-to-video/pro?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "Through a sheer red veil, a bride smiles as marigold petals fall around her, warm evening light",
    "duration": 6,
    "resolution": "1080p",
    "camera_motion": "dolly_in"
  }),
});
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": "Through a sheer red veil, a bride smiles as marigold petals fall around her, warm evening light",
    "duration": 6,
    "resolution": "1080p",
    "camera_motion": "dolly_in",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/lightricks/ltx-2.5/text-to-video/pro", 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": "lightricks/ltx-2.5/text-to-video/pro",
      "input": {
        "prompt": "Through a sheer red veil, a bride smiles as marigold petals fall around her, warm evening light",
        "duration": 6,
        "resolution": "1080p",
        "camera_motion": "dolly_in"
      },
      "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": "lightricks/ltx-2.5/text-to-video/pro",
  "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": 1020,
    "usd": "1.02",
    "charged": 1020,
    "refunded": 0
  },
  "input": {
    "prompt": "Through a sheer red veil, a bride smiles as marigold petals fall around her, warm evening light",
    "duration": 6,
    "resolution": "1080p",
    "camera_motion": "dolly_in"
  },
  "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
    }
  },
  "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} | 결과 동영상 파일입니다. |

## Related models

- [Ltx 2.5 Text to Video Fast](https://doitong.com/developers/models/lightricks/ltx-2.5/text-to-video/fast.md) (`lightricks/ltx-2.5/text-to-video/fast`): from $0.09 / second
- [LTX 2.5 Image to Video Fast](https://doitong.com/developers/models/lightricks/ltx-2.5/image-to-video/fast.md) (`lightricks/ltx-2.5/image-to-video/fast`): from $0.09 / second
- [LTX 2.5 Pro Image to Video](https://doitong.com/developers/models/lightricks/ltx-2.5/image-to-video/pro.md) (`lightricks/ltx-2.5/image-to-video/pro`): from $0.12 / second
- [Ltx 2.5 Audio to Video Fast](https://doitong.com/developers/models/lightricks/ltx-2.5/audio-to-video/fast.md) (`lightricks/ltx-2.5/audio-to-video/fast`): $0.13 / second of input audio
- [Ltx 2.5 Audio to Video Pro](https://doitong.com/developers/models/lightricks/ltx-2.5/audio-to-video/pro.md) (`lightricks/ltx-2.5/audio-to-video/pro`): $0.17 / second of input audio
- [FLUX 3 Max Text to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/text-to-video.md) (`blackforestlabs/flux-3-max/text-to-video`): from $0.0425 / second of output video
- [Grok Imagine Video 1.5 Text to Video](https://doitong.com/developers/models/xai/grok-imagine-video/v1.5/text-to-video.md) (`xai/grok-imagine-video/v1.5/text-to-video`): from $0.08 / second
- [Kling 3.0 Pro Text to Video](https://doitong.com/developers/models/kling-video/v3/pro/text-to-video.md) (`kling-video/v3/pro/text-to-video`): from $0.112 / second

## Links

- HTML page: https://doitong.com/developers/models/lightricks/ltx-2.5/text-to-video/pro
- 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=lightricks/ltx-2.5/text-to-video/pro
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/lightricks/ltx-2.5/text-to-video/pro