LTX 2.3 Pro
Open source. Native 4K at 50fps. Built-in audio.
LTX 2.3 Pro from Lightricks is a 22-billion parameter video model generating native 4K at 50fps with synchronised audio in a single pass. Ambient sound, dialogue, and effects are produced alongside the video rather than layered afterward. The rebuilt VAE delivers sharper fabric, cleaner hair, and stable reflections during camera moves.
Example outputs
“A slow dolly around a contemporary museum building, angular white concrete facades catching late afternoon sun, the reflecting pool mirroring the structure, architectural film”
“Camera pushing in on a luxury perfume bottle as mist swirls around the base, golden liquid catching dramatic studio light, premium product commercial”
“A cinematic flyover of floating fantasy islands connected by ancient stone bridges, waterfalls cascading into clouds below, a lone traveller crossing, epic game trailer”
“A smooth walkthrough of a boutique hotel lobby, camera gliding past the marble reception desk and under hanging pendant lights, warm evening atmosphere, interior showcase”
“Camera circling a custom cafe racer motorcycle on rain-wet cobblestones at night, chrome and leather catching streetlamp glow, moody automotive reveal”
“A fashion model mid-stride on a runway, camera tracking alongside, dramatic spotlights cutting through haze, front row silhouettes, fashion show footage”
How it works
Describe your scene
Type a detailed prompt describing the video you want, or upload a reference image as a starting frame.
Choose your settings
Pick your resolution and duration. See the credit cost before you generate.
Generate your video
Your video is ready in 1-3 minutes. Download, iterate, or extend the sequence.
Ready to create with LTX 2.3 Pro?
Jump into the Studio and start generating. Plans from £10/month.
Choose a PlanOpen-source 4K video with native audio.
LTX 2.3 Pro from Lightricks is one of the most capable video generation models available. At 22 billion parameters, it generates native 4K video at 50fps with synchronised audio in a single forward pass.
The rebuilt VAE with a redesigned latent space means sharper fabric, cleaner hair, and stable chrome reflections during camera moves. A 4x larger text connector allows complex multi-subject prompts to hold across the full clip.
LTX 2.3 is the first production model to generate native 9:16 portrait video without cropping, making it ideal for short-form social content on TikTok, Instagram Reels, and YouTube Shorts.
Native portrait mode
Generate vertical 1080x1920 video natively. No cropping from landscape. The model understands vertical composition and places subjects correctly for mobile-first content.
Audio in one pass
Sound effects, ambient audio, and dialogue are generated alongside the video. Timing is determined by the model, not post-production alignment.
Questions about LTX 2.3 Pro.
Why Stensyl?
A small indie studio building creative tools the way they should be built. No VC theatre, no funnel games, no faceless support.
Ready to create with LTX 2.3 Pro?
Professional video generation. Plans from £10/month.