LTXV – 13B – The latest video generation model open – sourced by Lightricks

What is LTXV-13B

LTXV-13B is an open-source AI video generation model released by Lightricks, featuring 13 billion parameters. It offers exceptionally fast generation—30 times faster than comparable models—and can run on consumer-grade GPUs like the RTX 4090/5090, delivering high inference speed and low cost. Based on multi-scale rendering technology, LTXV-13B generates smooth, detail-rich videos, making it ideal for rapid iteration and large-scale production in film, advertising, and other creative industries.

Key Features of LTXV-13B

• Efficient Generation: 30× speed improvement; supports consumer hardware.

• Multi-keyframe Adjustment: Fine-tuning for both start and end frames.

• Text-to-Video: Generate video content from text descriptions.

• Image-to-Video: Create dynamic videos based on input images.

• Camera Control: Simulate camera operations such as zoom, pan, crane, and dolly moves.

• Facial Expression Control: Adjust facial expressions of people in generated videos.

Technical Foundations of LTXV-13B

• Multi-Scale Rendering: Analyzes scenes at various spatial resolutions to preserve fine details while understanding the overall structure.

• High Compression Rate: Integrates Video-VAE and a denoising Transformer to achieve a 1:192 compression ratio, reducing computational cost.

• Enhanced GAN Technology: Introduces GANs to reduce blurring caused by high compression, with innovations like multi-layer noise injection, unified log variance, and video DWT loss to ensure high-frequency detail reconstruction.

• Unified Latent Diffusion: Seamlessly integrates Video-VAE and denoising Transformer tasks with a shared denoising objective to boost generation efficiency.

• Text & Image-Conditional Generation: Supports both text and image inputs, utilizing a pre-trained T5-XXL text encoder and diffusion timesteps as conditioning indicators, streamlining the generation process.

Project Links for LTXV-13B

• Official Website: https://www.lightricks.com/

• GitHub Repository: https://github.com/Lightricks/LTX-Video

• Hugging Face Model Hub: https://huggingface.co/Lightricks/LTX-Video

Application Scenarios for LTXV-13B

• Film Production: Rapid creation of video concepts, effects, and style transformations to boost production efficiency.

• Advertising & Marketing: Fast generation of creative ad videos with personalized content customization.

• Game Development: Produces cutscenes, character animations, and virtual environments.

• Education & Training: Creates educational videos and virtual training environments to assist teaching and practice.

• Personal Creation & Entertainment: Enables quick creation of short videos, virtual travel videos, and personalized storytelling.