LTX Video
Lightricks' open-source AI video generation model optimized for local desktop generation on consumer GPUs via ComfyUI.
Features
- Up to 20 seconds of 4K video with built-in audio
- Runs locally on GPUs with 12GB+ VRAM
- Native ComfyUI integration
- Multi-keyframe support and advanced conditioning
- NVIDIA NVFP4/NVFP8 optimizations for 3x faster performance
LTX Video (LTX-2) is an open-source video generation model by Lightricks designed for local, on-device generation. It delivers results competitive with cloud-based models while running entirely on consumer RTX GPUs, producing up to 20 seconds of 4K video with synchronized audio. NVIDIA’s CES 2026 optimizations reduced VRAM usage by 60% and tripled inference speed, making it the leading option for privacy-conscious creators and developers who prefer local workflows.
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