LTX Video
An open-source video generation model from Lightricks, notable for being the fastest open-weights video model available as of early 2026. It generates 5-second 768x512 clips in roughly 2 seconds on a modern GPU, making near real-time video generation possible on consumer hardware for the first time. Built on a transformer-based DiT architecture with a highly efficient video VAE, LTX Video runs on GPUs with 8GB VRAM or more via ComfyUI workflows. Handles both text-to-video and image-to-video generation. Released under Apache 2.0 on Hugging Face. Popular with developers building video generation pipelines who need low-latency inference without paying for cloud GPU time. The speed advantage makes it especially useful for rapid concept iteration and prototype apps.
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