LTX

Open-source AI video generation — 4K, synchronized audio, and creative control.

Video GeneratorAIOpen SourceAudioFreemium

LTX by Lightricks is a state-of-the-art open-source video generation model that produces synchronized audio+video, 4K resolution at up to 50 FPS, and supports image-to-video, video extension, multi-keyframe control, and LoRA fine-tuning. Available via web app at ltx.studio, with open-source weights on Hugging Face and a vibrant ComfyUI community.

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ltx.video

Key Features

Audio + Video
Generate visuals and sound together in one coherent process — motion, dialogue, ambience, and music flow simultaneously without post-sync.
4K Quality
Professional-grade precision with native 4K output and up to 50 fps — sharp textures, clean motion, and production-ready quality.
Creative Control
Start from images, extend existing clips forward or backward, and condition on multiple keyframes for precise scene control.
Open Source
Model weights on Hugging Face, LoRA fine-tuning support, and deep ComfyUI integration — customize and extend freely.