# Lightricks LTX 2.3 Pro Text to Video API

> Ltx 2.3 Pro is Lightricks's text-to-video AI model. Turn written scripts and prompts into professional-quality video clips with realistic motion, lighting, and scene composition.

Source: https://www.sandbase.ai/models/lightricks/ltx-2.3-pro/text-to-video
API reference: https://www.sandbase.ai/models/lightricks/ltx-2.3-pro/text-to-video/docs

## Facts

- Provider: Lightricks
- Type: Video model
- Model ID: `lightricks/ltx-2.3-pro/text-to-video`
- Price: From $0.48 per run
- Capabilities: text to video
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Unified Run API: `POST https://api.sandbase.ai/v1/run`

```bash
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "lightricks/ltx-2.3-pro/text-to-video",
  "prompt": "Through-the-veil shot of a bride'"'"'s face during an Indian wedding ceremony, camera positioned behind the sheer red dupatta fabric, the embroidered pattern creating a textured overlay on her face, her eyes lined with kohl looking down at henna-covered hands, marigold garlands in soft background bokeh, 85mm f/1.2 focused through the fabric layer, warm tungsten and candlelight, Mira Nair Monsoon Wedding intimacy",
  "duration": 6,
  "resolution": "1080p",
  "aspect_ratio": "16:9",
  "generate_audio": true
}'
```

The response returns a run id; poll `GET https://api.sandbase.ai/v1/run/{id}` until the status is `completed` or `failed`.

## FAQ

### How do I call Lightricks LTX 2.3 Pro Text to Video through SandBase?

Create a SandBase API key, then send requests with the model ID "lightricks/ltx-2.3-pro/text-to-video" to Unified Run API (/v1/run) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### Do I need a separate Lightricks account?

No. One SandBase API key and balance gives you access to Lightricks LTX 2.3 Pro Text to Video and the other models in the catalog; you do not need to sign up with Lightricks separately.

## README

### LTX 2.3 Pro Text to Video

LTX 2.3 Pro text to video: 6–10 second clips with native audio at 1080p, 1440p, or 4K (2160p).

#### Fields

| Field | Type | Default | Notes |
|---|---|---|---|
| `prompt` | string, required | — | Up to 5,000 characters. |
| `aspect_ratio` | `16:9` / `9:16` | `16:9` | Output frame shape. |
| `resolution` | `1080p` / `1440p` / `2160p` | `1080p` | Sets the per-second rate. |
| `duration` | 6 / 8 / 10 | 6 | Output length in seconds. |
| `generate_audio` | boolean | true | Native audio. |

#### Billing

You pay for output seconds: $0.08 at 1080p, $0.16 at 1440p, $0.32 at 2160p.

| Output | 1080p | 1440p | 2160p |
|---|---|---|---|
| 6s (default) | $0.48 | $0.96 | $1.92 |
| 8s | $0.64 | $1.28 | $2.56 |
| 10s | $0.80 | $1.60 | $3.20 |

Failed runs are not charged.

#### Prompting

- Describe subject, action, camera, and sound.

#### Also on SandBase

Other LTX 2.3 endpoints: `lightricks/ltx-2.3-pro/image-to-video`, `lightricks/ltx-2.3-pro/audio-to-video`, `lightricks/ltx-2.3-pro/retake`, `lightricks/ltx-2.3-pro/video-extend`.