Documentation Index
Fetch the complete documentation index at: /llms.txt
Use this file to discover all available pages before exploring further.
Fast, high-quality video generation up to 4K resolution.
| Model id | ltx-2.3-fal |
| Media | video |
| Submit to | POST /v1/videos |
| Price | 4.4 credits per_second before discounts |
| Typical time | about 60.0 s |
promptaspect_ratio, duration_seconds, quality, reference_images
{
"model": "ltx-2.3-fal",
"prompt": "Wide tracking shot past buffet tables, warm night wedding light, shallow depth, photoreal, no faces sharp in frame. No text.",
"aspect_ratio": "auto",
"duration_seconds": 6,
"quality": "1080p"
}
| Field | Allowed | Default |
|---|---|---|
aspect_ratio | auto, 16:9, 9:16 | "auto" |
duration_seconds | 6, 8, 10 | 6 |
quality | 1080p, 1440p, 2160p | "1080p" |
reference_images | asset id (up to 1) |
POST /v1/uploads or an earlier output’s asset_id.
Prices and allowed values come from the live catalog; GET /v1/models/ltx-2.3-fal is always current.