Lightricks released LTX 2.3 – a 22-billion-parameter open-source video generation model producing native 4K at 50 FPS with built-in audio sync. Apache 2.0 licensed, runs on consumer hardware, completely free.
What It Can Do
- Text-to-Video, Image-to-Video, Audio-to-Video
- Up to 20 seconds per generation
- Native portrait mode (9:16) for social media
- Built-in audio synchronization
Four Major Improvements
- Redesigned VAE – sharper details, realistic textures
- Gated attention text connector – better prompt following
- Native portrait video – vertical 1080×1920
- Cleaner audio quality
Run It Locally
Fully open-source under Apache 2.0. Run locally, use ComfyUI, deploy on your servers, or use the desktop editor. Unlike Sora, Runway, or Kling – no subscriptions needed.
Our Verdict
Democratizes AI video generation. The most important open-source AI release of March 2026.
Rating: 9/10
