LTX-2 - The First Open-Source AI Model for 4K Video & Audio Generation
LTX-2 is a state-of-the-art, production-ready AI foundation model for generating synchronized audiovisual content. Create stunning 4K videos at 50 FPS with native audio generation. Fully open-weights, NVIDIA-optimized, and ready for local deployment.
Interactive Demo
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Generated Videos Showcase
See what LTX-2 can create - all videos below are AI-generated
Powerful Features for Creative Production
LTX-2 combines cutting-edge AI technology with practical production capabilities, delivering professional-grade results for creators and developers.
4K Resolution at 50 FPS
Generate native 4K (2160p) video at up to 50 frames per second. The first open model to achieve true ultra-high-definition quality with smooth, cinematic motion.
Synchronized Audio Generation
First open-weights model for joint audiovisual generation. Create perfectly synchronized audio including dialogue, ambient sounds, and music in a single pass.
Text & Image to Video
Transform text prompts or static images into dynamic video content. Support for multi-keyframe conditioning and advanced control techniques.
Up to 20 Second Clips
Generate extended video clips up to 20 seconds in length with temporal coherence and consistent quality throughout the entire sequence.
NVIDIA Optimized
3x faster performance with NVFP4 format on RTX 50 Series. 40% VRAM reduction with optimized weights. ComfyUI integration with 40% performance boost.
Fully Open-Source
Complete access to model weights, training code, and inference pipeline under Apache 2.0 license. Fine-tune with LoRA, customize, and deploy anywhere.
Exceptional Performance Metrics
Powered by a 19B parameter DiT architecture with industry-leading speed and quality optimizations.
Built for Professional Workflows
From content creation to research, LTX-2 empowers creators and developers across industries.
How LTX-2 Stacks Up
See how LTX-2 compares to other leading AI video generation models.
| Feature | LTX-2 | Sora | Runway Gen-3 | Pika |
|---|---|---|---|---|
| Open Source | ✓ | ✗ | ✗ | ✗ |
| Max Resolution | 4K | 1080p | 4K | 720p |
| Audio Generation | ✓ | ✗ | Limited | ✗ |
| Max Duration | 20s | 60s | 10s | 5s |
| Local Execution | ✓ | ✗ | ✗ | ✗ |
| API Available | ✓ | Limited | ✓ | ✓ |
| Cost | Free | TBD | High | Medium |
| Custom Training | ✓ | ✗ | ✗ | ✗ |
Recent Announcements
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Frequently Asked Questions
Find answers to common questions about LTX-2.