What is LTX-2.5 Fast?

It is the fast tier of Lightricks’ LTX-2.5 open audio-video model, generating clips with native synchronized sound at every resolution.

Does it generate sound?

Yes — audio is included natively at every resolution tier, not a paid add-on.

How long can clips be?

From 6 to 20 seconds in even-numbered steps (6, 8, 10, and so on).

Which resolution does Made use?

Made bills the provider’s 1080p default at cost. The provider also serves 720p, 1440p, and 4K at other rates.

Can it animate an existing image?

Yes. Add a start image and optionally an end frame; the fast image-to-video endpoint renders at the same rate.

When should I choose another model?

Choose FLUX 3 for the strongest cinematic audio clips, or Seedance 2.0 Mini and H3 Max Turbo when drafting on a budget.

video model

Generate AI video with audio using LTX-2.5 Fast

LTX-2.5 Fast is Lightricks’ open audio-video model, generating 6 to 20 second clips with native synchronized audio included at every resolution, from text or a start image.

$0.13 / second at provider cost for members — see the full price breakdown

What you need to start

Describe the shot and its sound, or add a start image to animate.

Browse all models See pricing and plans

Original results

LTX-2.5 Fast examples made in Made

These examples use media produced for Made. Prompts are included when the production record allows them.

Motion study with audio

“A hand drops the needle onto a spinning vinyl record in a warm-lit listening room, crackle giving way to soft jazz, the camera pushing in past the tonearm.”

Image-to-video

“Animate the scene: the record spins up, the needle settles into the groove, room tone and vinyl crackle rise.”

Creative scene

“A thunderstorm rolls over golden wheat fields, stalks bending in waves as thunder rumbles closer, a slow aerial pull-back revealing the storm front.”

Turntable still used as an LTX-2.5 Fast start frame

Start-frame control

“Use this image as the opening composition.”

Scene brief

“Set the scene as a still before describing its motion and sound.”

Composition brief

“Plan the shot as a still, then hand the motion to the model.”

Where LTX-2.5 Fast fits best

Best uses

Mid-priced clips with native audio at every tier
Longer takes — up to 20 seconds in one pass
Animating stills with an optional end frame
An open-weights model lineage from Lightricks

Limits to know

Made bills the provider’s 1080p default tier; durations are even-numbered steps (6, 8, 10 … 20), not arbitrary lengths.
Aspect ratios are limited to 16:9 and 9:16.

Specifications in Made

These are the controls exposed by Made, which may be narrower than a provider’s full API.

Aspect ratios: 16:9, 9:16
Resolution: 1080p (Made pins the billed tier)
Duration: 6–20 seconds (even steps)
Output formats: MP4 with audio
Reference images: 2
Processing: Fast tier of the LTX-2.5 line; scales with duration.

How to use LTX-2.5 Fast in Made

1
Write the shot and its sound
Describe subject, motion, camera, and audio — sound is native at every resolution.
2
Add a start image if needed
Upload a still to animate; an optional end frame guides the closing composition.
3
Pick an even duration
Choose 16:9 or 9:16 and a length from 6 to 20 seconds in steps of two.
4
Review and refine
Check audio sync and motion, then adjust one instruction at a time.

Go deeper on LTX-2.5 Fast

LTX-2.5 Fast pricing

$0.13 / second at the provider's wholesale rate — the full breakdown, verified.