> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zerogen.com/llms.txt
> Use this file to discover all available pages before exploring further.

# LTX 2.5

> Lightricks' video model, for high resolutions, camera moves and video driven by audio.

LTX 2.5, from Lightricks, makes video at up to 2160p, with camera moves you
choose. It can also make a video that follows an audio clip. Choose **Fast**,
the default, or **Pro** under **Tier**.

## What you can give it

* **A prompt** of up to 5,000 characters.
* **Frames**: a start frame, and an optional end frame.
* **Audio**: one audio clip, plus an optional start image. The video runs as
  long as the audio, at 1080p. The clip can run 2 to 20 seconds on Fast, or 2
  to just under 10 seconds on Pro.

## Output settings

| Setting | Fast | Pro |
| - | - | - |
| Resolution | 720p, 1080p, 1440p, 2160p | 720p, 1080p |
| Duration | 6 to 20 seconds, in steps of 2 | 6, 8 or 10 seconds |
| Frame rate | 24, 25, 48 or 50 fps. 25 is the default. | 24, 25 or 50 fps. 25 is the default. |

* **Aspect ratio**: 16:9 or 9:16. With frames or audio, **Auto** follows the
  input.
* **Camera motion**: **Static**, the default, or dolly in, out, left or right,
  jib up or down, or focus shift.
* **Audio**: on or off, except when the video follows an audio clip.
* **Quantity**: 1 to 4 videos.

## Cost

LTX 2.5 is priced per second of video, by tier and resolution. Video from an
audio clip is priced at 1080p for the clip's length. A 6-second 720p video on
the Fast tier costs about \$0.71. Prices are as of October 28, 2026.


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