DiT-Based Architecture
LTX 2 Fast pioneered the world's first Diffusion Transformer architecture for unified audiovisual generation, leveraging 19 billion parameters to deliver unprecedented quality and coherence in video creation.
AI Video Generator
LTX 2 Fast AI Video Generator
Experience the breakthrough LTX 2 Fast video generator from Lightricks. Generate professional-quality videos with synchronized audio in seconds using the first DiT-based audiovisual model. Transform ideas into reality at unprecedented speed.
CreditsCost
AI Video Generator
LTX-2 Fast
AI output preview
An astronaut walking on Mars, red dust blowing, cinematic low angle shot, 4K
Revolutionary Features of LTX 2 Fast
Discover why LTX 2 Fast from Lightricks represents a paradigm shift in AI video generation technology.
Synchronized Audio-Video
Unlike traditional models, LTX 2 Fast generates perfectly synchronized audio and video simultaneously. The integrated architecture ensures every sound effect, dialogue, and ambient noise aligns seamlessly with visual action.
Rapid Iteration Mode
The LTX 2 Fast operates as the high-speed variant of the LTX-2 family, prioritizing generation speed over maximum detail refinement. Perfect for rapid prototyping, storyboarding, and iterative creative workflows.
Transform Your Creative Workflow with LTX 2 Fast
See how LTX 2 Fast's innovative technology streamlines every stage of video production.
Lightning-Fast Generation
LTX 2 Fast delivers video results in seconds, not minutes. The optimized inference pipeline enables real-time creative iteration, allowing you to visualize concepts instantly without waiting for lengthy render times. As the fast mode of the 19-billion parameter LTX-2 model, it strikes the perfect balance between speed and quality, making it ideal for rapid concepting and pre-visualization workflows.
Generate InstantlyUnified Audiovisual Generation
Experience the groundbreaking advantage of LTX 2 Fast's DiT-based architecture. As the first model to natively generate synchronized audio and video in a single pass, it eliminates the need for separate audio workflows. Characters speak with perfect lip-sync, footsteps align precisely with movement, and environmental sounds emerge naturally from visual elements. This holistic approach from Lightricks revolutionizes content creation.
Try Audio SyncProfessional Control & Flexibility
LTX 2 Fast provides sophisticated creative control through advanced prompt interpretation and camera movement capabilities. The 19B parameter foundation enables nuanced understanding of cinematic terminology, from complex camera moves to subtle lighting changes. Multi-keyframe conditioning allows precise temporal control over scene evolution, while the fast iteration mode lets you explore multiple creative directions rapidly before committing to final renders.
Control CameraOpen-Source Innovation
LTX 2 Fast is released under the Apache 2.0 license, representing Lightricks' commitment to democratizing advanced AI video technology. The open-source approach enables researchers, developers, and creators worldwide to build upon this foundation, customize workflows, and contribute to the evolution of audiovisual AI. Whether you're developing custom applications or integrating into existing pipelines, LTX 2 Fast offers unparalleled accessibility and flexibility.
Create StoryWhy LTX 2 Fast Outperforms Traditional Video AI
Discover the competitive advantages that make LTX 2 Fast the preferred choice for professional creators.
Speed Without Compromise
LTX 2 Fast achieves generation speeds that dramatically outpace traditional diffusion models while maintaining professional quality. The fast mode prioritizes rapid iteration, enabling creative teams to explore dozens of concepts in the time other tools generate a single clip. This speed advantage transforms brainstorming sessions, client presentations, and production planning workflows.
First DiT-Based Audiovisual Model
LTX 2 Fast pioneered the application of Diffusion Transformer architecture to simultaneous audio-video generation. This architectural innovation from Lightricks eliminates the temporal misalignment issues plaguing separate audio and video pipelines. The 19-billion parameter model learns deep relationships between visual events and corresponding sounds, producing naturally synchronized results that previously required manual editing.
Apache 2.0 Open-Source License
Unlike proprietary alternatives, LTX 2 Fast is freely available under the permissive Apache 2.0 license. This open-source approach empowers developers to customize the model, integrate it into commercial applications, and build specialized tools without licensing restrictions. The transparent development process fosters innovation while giving organizations complete control over their creative pipeline.
Creators Accelerating Workflows with LTX 2 Fast
See how professionals across industries leverage LTX 2 Fast to transform production timelines.
LTX 2 Fast Frequently Asked Questions
Everything you need to know about implementing LTX 2 Fast in your creative workflow.
What makes LTX 2 Fast different from other AI video generators?
LTX 2 Fast is the world's first DiT-based model for simultaneous audio-video generation. Developed by Lightricks with 19 billion parameters, it generates perfectly synchronized audiovisual content in a single pass, unlike traditional models that process audio and video separately. The fast mode prioritizes speed for rapid iteration workflows.
How does the DiT architecture benefit video generation?
The Diffusion Transformer architecture enables LTX 2 Fast to learn deep relationships between visual events and corresponding audio. This unified approach ensures natural synchronization between sound effects, dialogue, and visual action, eliminating the temporal misalignment issues common in separate audio-video pipelines.
What does the Apache 2.0 license allow?
LTX 2 Fast's Apache 2.0 open-source license permits free commercial use, modification, and distribution. You can integrate the model into proprietary applications, customize it for specific workflows, and deploy it without licensing fees or usage restrictions, making it ideal for both research and production environments.
What is the difference between LTX 2 Fast and standard LTX-2?
LTX 2 Fast operates as the rapid iteration mode of the 19B parameter LTX-2 family. It prioritizes generation speed over maximum detail refinement, making it perfect for brainstorming, pre-visualization, and scenarios where quick turnaround matters more than ultimate polish. Both share the same DiT architecture and synchronized audio capabilities.
How large is the LTX 2 Fast model?
LTX 2 Fast leverages 19 billion parameters, providing sophisticated understanding of visual concepts, camera movements, and audio-video relationships. Despite this scale, the optimized fast mode delivers rapid inference speeds suitable for interactive creative workflows.
Can LTX 2 Fast be used commercially?
Absolutely. The Apache 2.0 license explicitly permits commercial use of LTX 2 Fast without royalties or usage fees. Whether you're producing client work, developing commercial applications, or creating content for monetized platforms, you have complete freedom to deploy and profit from LTX 2 Fast-generated content.
Start Creating with LTX 2 Fast Today
Experience the breakthrough combination of speed, synchronized audio-video generation, and open-source flexibility. Join creators worldwide using LTX 2 Fast to accelerate their creative vision.