LTX-2 Video Generator
with Audio Generation
Create stunning AI videos with synchronized audio. Powered by Lightricks' 19B parameter DiT model for ultra-realistic motion and sound.
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Showcase Gallery
Examples of videos generated with LTX-2. Hover to preview.
20 Second Clips
"Generate up to 20 seconds of high-fidelity video with complete control and consistent style"
50 FPS Performance
"Optimized for speed without sacrificing quality. Generate synchronized 4K video and audio in seconds"
Audio & Video Sync
"Create synchronized visuals and sound in one coherent process: motion, dialogue, ambience, and music"
Cinematic City
"Aerial drone shot over a futuristic cyberpunk city at night, neon lights reflecting on wet streets, smooth camera movement"
Nature Scene
"Slow motion waterfall in a lush tropical forest, morning mist rising, golden hour sunlight filtering through trees"
Abstract Motion
"Abstract fluid simulation with vibrant colors morphing and flowing, liquid metal aesthetic, dramatic lighting"
Portrait Animation
"Elegant portrait of a woman turning her head slowly, studio lighting, shallow depth of field, cinematic color grading"
Native 4K Resolution
"Generate cinematic-grade video with synchronized audio at true 4K / 50 fps. Built for professional workflows"
Why Choose LTX-2
Next-generation video AI with integrated audio synthesis.
Built-in Audio
Synchronized sound generation in a single pass. No separate audio model needed.
Ultra-Fast Rendering
Optimized inference with up to 20 second video generation in under a minute.
4K Resolution
Crystal clear output up to 4K resolution with 50 FPS support.
Frequently Asked Questions
Everything you need to know about LTX-2.
Q.What is LTX-2?
LTX-2 is a 19 billion parameter DiT-based audio-video foundation model by Lightricks. It generates synchronized video and audio in a single pass.
Q.How long can videos be?
LTX-2 Fast supports up to 20 second videos. LTX-2 Pro optimizes for quality with durations up to 10 seconds.
Q.What resolution is supported?
Videos can be generated at 1080p, 1440p, 2K, or 4K resolution with 25 or 50 FPS options.
Q.Does it generate audio automatically?
Yes! LTX-2 uniquely generates synchronized audio alongside video, creating complete audiovisual content in one generation.
What is LTX-2 Video Generator?
The most advanced open-source AI video generation model from Lightricks
LTX-2 (also known as LTX-Video 2.0) is the latest iteration of Lightricks' groundbreaking open-source AI video generation model. Built on a state-of-the-art Diffusion Transformer (DiT) architecture with 19 billion parameters, LTX-2 represents a significant leap forward in text-to-video and image-to-video generation capabilities.
What sets LTX-2 apart from other AI video generators is its unique ability to generate synchronized audio and video in a single pass. This revolutionary approach eliminates the need for separate audio models, making LTX-2 the first truly unified audio-video generation foundation model available to the public.
LTX-2 Video Parameters
- 14B parameters for video generation
- 5B parameters for audio synthesis
- Up to 4K resolution output
- Support for 25 and 50 FPS
LTX-2 Generation Speed
- Real-time generation speed
- Faster than video playback
- Up to 20 seconds video length
- Highly compressed latent space
LTX-2 Technical Architecture
Understanding the revolutionary DiT-based architecture behind LTX-2 video generation
Asymmetric Dual-Stream Transformer
The core innovation behind LTX-2 is its asymmetric dual-stream Transformer architecture. This design allows the model to simultaneously process video (using 14 billion parameters) and audio (using 5 billion parameters) in a unified generation pipeline, achieving perfect audio-video synchronization.
Latent Video Diffusion
LTX-2 employs a highly efficient latent video diffusion approach. By operating in a compressed latent space, the LTX-2 video generator achieves generation speeds that are literally faster than real-time video playback. This breakthrough was detailed in the research paper "LTX-Video: Realtime Video Latent Diffusion" (arXiv:2501.00103).
Open Source Foundation Model
Unlike proprietary AI video generation tools, LTX-2 is completely open source. The model weights are available on Hugging Face, and the full PyTorch implementation is hosted on GitHub. This makes LTX-2 accessible for researchers, developers, and creators worldwide who want to integrate cutting-edge AI video generation into their projects.
LTX-2 Resources
- • GitHub Repository: Official LTX-Video implementation with inference scripts
- • Hugging Face Model: LTX-2 model weights for local deployment
- • ComfyUI Integration: Official ComfyUI nodes for workflow automation
- • Research Papers: ArXiv publications on architecture and techniques
LTX-2 Use Cases
How creators and businesses are using LTX-2 AI video generation
Social Media Content
Create engaging short-form videos for TikTok, Instagram Reels, and YouTube Shorts with LTX-2's fast text-to-video generation and automatic audio sync.
Marketing & Advertising
Generate professional video ads and promotional content in minutes. LTX-2's AI video generator produces studio-quality results at scale.
Film & Animation
Use LTX-2 for concept visualization, storyboarding, and pre-visualization. The image-to-video capability brings static frames to life.
E-commerce Product Videos
Transform product photos into dynamic video presentations. LTX-2 generates realistic motion and synchronized audio for product showcases.
Educational Content
Create explainer videos and educational animations with LTX-2's text-to-video AI. Perfect for online courses and training materials.
Music & Entertainment
Generate music videos and visual accompaniments. LTX-2's audio-video synchronization ensures perfect timing with your music.
LTX-2 Prompt Engineering Guide
How to write effective prompts for optimal LTX-2 video generation results
Getting the best results from LTX-2 requires understanding how to craft effective prompts. The LTX-2 video generator responds well to detailed, structured descriptions that specify motion, lighting, and atmosphere.
Key Elements for LTX-2 Prompts
Camera Movement
Specify shot types (close-up, wide shot, aerial), camera movement (pan, tilt, dolly, drone), and movement speed (slow motion, time-lapse).
Lighting & Atmosphere
Describe lighting conditions (golden hour, neon lights, studio lighting) and atmospheric elements (fog, rain, dust particles).
Action & Motion
Use present-tense action verbs to describe movement. Be explicit about the temporal flow and sequence of actions.
Style & Aesthetics
Include style references (cinematic, documentary, anime) and technical details (depth of field, color grading, aspect ratio).
Example LTX-2 Prompts
"Cinematic tracking shot following a vintage red sports car driving through neon-lit city streets at night, rain-slicked pavement reflecting colorful lights, steam rising from manholes, slow motion, shallow depth of field"
"Aerial drone shot rising slowly over a misty mountain forest at golden hour, revealing a serene lake in the distance, volumetric fog, warm orange sunlight filtering through trees, 4K cinematic quality"
"Close-up portrait of an elegant woman in a flowing white dress, soft wind blowing her hair, studio lighting with subtle rim light, she slowly turns to look at the camera, smooth motion, high fashion aesthetic"
LTX-2 vs Other AI Video Generators
How does LTX-2 compare to other text-to-video AI models?
| Feature | LTX-2 | Other Models |
|---|---|---|
| Audio Generation | ✓ Built-in sync | Separate model needed |
| Generation Speed | Real-time | Minutes per video |
| Max Duration | Up to 20 seconds | 4-10 seconds |
| Max Resolution | 4K | 1080p typical |
| Open Source | ✓ Fully open | Often proprietary |
| Parameters | 19B | 1-13B typical |
LTX-2 stands out as the first AI video generator with native audio-video synchronization, making it ideal for creators who need complete audiovisual content without post-production audio matching.
More About LTX-2 Video Generation
Additional questions about LTX-2 AI video generator
Is LTX-2 open source?
Yes, LTX-2 is fully open source. The model weights are available on Hugging Face, and the official PyTorch implementation is hosted on GitHub at github.com/Lightricks/LTX-Video. This includes inference scripts, installation guides, and documentation for local deployment.
Can I run LTX-2 locally?
Yes, LTX-2 can be run locally on systems with sufficient GPU memory. The model requires a high-end NVIDIA GPU with at least 24GB VRAM for full functionality. ComfyUI integration is also available for visual workflow creation.
What makes LTX-2 different from LTX-Video 0.9.1?
LTX-2 adds revolutionary audio-video joint generation. While LTX-Video 0.9.1 focused solely on video generation, LTX-2 uses an asymmetric dual-stream Transformer to generate synchronized audio and video simultaneously, eliminating the need for separate audio processing.
How does LTX-2 audio generation work?
LTX-2 uses a 5 billion parameter audio stream that runs parallel to the 14 billion parameter video stream. This asymmetric dual-stream architecture ensures that generated audio perfectly matches the visual content, including ambient sounds, speech, and effects.
Can I use LTX-2 for commercial projects?
Yes, LTX-2's open-source license permits commercial use. However, always verify the specific license terms on the official GitHub repository and Hugging Face page for the most current licensing information.
What input formats does LTX-2 support?
LTX-2 supports both text-to-video and image-to-video generation. For text-to-video, you provide a detailed text prompt. For image-to-video, you can upload a starting frame and the model will animate it based on your prompt description.
Is there an API for LTX-2?
Yes, you can access LTX-2 through multiple platforms. The official LTX.io developer portal provides API access, and third-party services like Replicate offer hosted API endpoints for easier integration without local deployment.
What research papers cover LTX-2?
Two key papers cover LTX technology: 'Efficient Joint Audio-Visual Foundation Model' (arXiv:2601.03233) details LTX-2's audio-video architecture, and 'LTX-Video: Realtime Video Latent Diffusion' (arXiv:2501.00103) explains the underlying real-time generation technology.
Start Creating with LTX-2 Today
Experience the future of AI video generation with synchronized audio. Create stunning videos in seconds with the most advanced open-source video AI model.
LTX-2 by Lightricks is revolutionizing AI video generation with its unique audio-video synchronization capabilities. Whether you're creating text-to-video content for social media, developing AI video applications, or exploring the cutting edge of video generation AI, LTX-2 provides the tools you need. This 19 billion parameter model generates 4K video with synchronized audio faster than any other publicly available AI video generator.