Generate 4K Videos in Seconds with LTX 2.5 Fast

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Overview

LTX 2.5 Fast turns a text prompt or a single starting image into a video clip with synchronized audio, built for speed rather than patience. If you're stitching together a product demo, a social clip, or a quick animated scene and don't want to wait minutes per render, this model hands you a usable result fast enough to try several versions in one sitting. It handles both portrait and landscape framing, so the same tool works for a vertical reel or a widescreen shot without extra cropping. On Picasso IA, you type a prompt or upload a first frame, choose your resolution and duration, and the clip lands in your downloads.

How It Works

Write a prompt describing the scene, or upload a first frame image to animate from a real photo
Optionally add a last frame image so the clip interpolates between a start point and an end point
Set the aspect ratio, resolution, frame rate, and duration for the shot you need
Generate audio automatically alongside the video, or turn it off if you'll add your own sound later
Download the clip once it's ready, in a format that plays on any device without conversion

Frequently Asked Questions

Do I need programming skills or technical knowledge to use this? No, just open LTX 2.5 Fast on Picasso IA, adjust the settings you want, and hit generate.

Is it free to try? Yes, you can generate a clip with LTX 2.5 Fast at no cost, so you can judge the quality before relying on it for paid work.

How long does it take to get results? Most clips render in well under a minute, even at higher resolutions, so you can review a version and adjust the prompt quickly.

What output formats are supported? You get a standard video file with audio already mixed in, playable on a phone, laptop, or editing app without conversion.

Can I customize the output quality or style? Yes, you can push resolution up to 4K, switch between portrait and landscape, and adjust duration and frame rate to match the look you want.

How many times can I run the model? You can run LTX 2.5 Fast as many times as you like within your plan, so feel free to regenerate with a tweaked prompt until it matches what you pictured.

Where can I use the outputs? The video and its audio are yours to use in ads, social posts, product pages, or any project you're building.

Credit Cost

The credit cost for this model varies based on the settings you choose. Below are the costs per configuration:

ConfigurationCredits

720p0.6per second

1080p1.2per second

2k2.4per second

4k4.8per second

Features

Everything this model can do for you

4K resolution

Render final clips at up to 3840x2160 pixels for crisp playback on any screen.

Synced audio

Generate matching sound directly with the video, no separate audio track needed.

Image-to-video

Turn a single still photo into a moving 20-second clip with natural motion.

Frame interpolation

Feed a start and end frame and let the model fill in a smooth transition between them.

Both orientations

Produce portrait or landscape clips to match social feeds or widescreen players.

Fast rendering

Get a finished clip back in a fraction of the time typical video models take.

Flexible duration

Choose anywhere from 2 to 20 seconds depending on the resolution and frame rate you pick.

Frame rate control

Pick 24, 25, 48, or 50 fps to match cinematic or ultra-smooth playback styles.

Use Cases

Generate a 20-second product demo video straight from a written script and a photo of the item

Turn a single portrait photo into a talking style clip with lip-synced audio

Build a vertical clip for social stories by setting the aspect ratio to 9:16 and describing the scene

Interpolate between a starting photo and an ending photo to create a smooth transition shot

Produce a landscape clip in 4K for a website hero section from a text description alone

Add narration or ambient sound automatically by turning on audio generation for a text-to-video clip

Convert a still illustration into a short animated scene by describing the camera movement you want

Test different frame rates, from 24 to 50 fps, to match a cinematic or slow-motion look

Examples

1080p

16:9

25 FPS

33.6s

Generate Audio: Yes

the giant looks down at the people and the people look up at him. "LTX-2.5" text stays on the screen the whole time. birds chirping in background loudly and dense jungle noises