LTX-2 is a 19-billion-parameter open-source video foundation model (14B video + 5B audio) that generates synchronized high-resolution video and audio in a single pass. It supports native 4K (3840×2160) at up to 50 FPS and video clips up to 20 seconds, with multimodal inputs including text prompts, images, depth maps, keyframes, and short reference videos. The model provides native audio synthesis—dialogue, ambient sounds, music and Foley—aligned to visual events. LTX-2 is optimized for efficient inference (NVFP4/NVFP8) and shipped under Apache 2.0 so teams can download weights, fine-tune, deploy locally, or use the hosted web generator (credits required).

LTX-2 AI is a production-ready, open-source video generation model that creates up to 4K, 50 FPS clips with integrated audio (dialogue, ambient sounds, and music) directly synchronized to visuals. Users provide text prompts or reference images; the model produces short videos (6–20s) optimized for social platforms and professional workflows. It can be run locally, fine-tuned, or accessed via API for batch generation, offering creators full control of content, licensing under Apache 2.0 and the ability to integrate into existing pipelines.