ComfyUI-LTXVideo

ComfyUI-LTXVideo is a collection of custom nodes for ComfyUI, designed to provide useful tools for working with the LTXV model. The model itself is supported in the core ComfyUI code. The main LTXVideo repository can be found here.

5.03.2025 :star: LTXVideo 0.9.5 Release :star:

LTXVideo 0.9.5 introduces:

Improved quality with reduced artifacts.
Support for higher resolution and longer sequences.
Frame and sequence conditioning (beyond the first frame).
Enhanced prompt understanding.
Commercial license availability.

Technical Updates

Since LTXVideo is now fully supported in the ComfyUI core, we have removed the custom model implementation. Instead, we provide updated workflows to showcase the new features:

Frame Conditioning – Enables interpolation between given frames.
Sequence Conditioning – Allows motion interpolation from a given frame sequence, enabling video extension from the beginning, end, or middle of the original video.
Prompt Enhancer – A new node that helps generate prompts optimized for the best model performance. See the Example Workflows section for more details.

LTXTricks Update

The LTXTricks code has been integrated into this repository (in the /tricks folder) and will be maintained here. The original repo is no longer maintained, but all existing workflows should continue to function as expected.

22.12.2024

Fixed a bug which caused the model to produce artifacts on short negative prompts when using a native CLIP Loader node.

19.12.2024 ⭐ Update ⭐

Improved model - removes "strobing texture" artifacts and generates better motion. Download from here.
STG support
Integrated image degradation system for improved motion generation.
Additional initial latent optional input to chain latents for high res generation.
Image captioning in image to video flow.

Installation

Installation via ComfyUI-Manager is preferred. Simply search for ComfyUI-LTXVideo in the list of nodes and follow installation instructions.

Manual installation

Install ComfyUI
Clone this repository to custom-nodes folder in your ComfyUI installation directory.
Install the required packages:

cd custom_nodes/ComfyUI-LTXVideo && pip install -r requirements.txt

For portable ComfyUI installations, run

.\python_embeded\python.exe -m pip install -r .\ComfyUI\custom_nodes\ComfyUI-LTXVideo\requirements.txt

Models

Download ltx-video-2b-v0.9.1.safetensors from Hugging Face and place it under models/checkpoints.
Install one of the t5 text encoders, for example google_t5-v1_1-xxl_encoderonly. You can install it using ComfyUI Model Manager.

Example workflows

Note that to run the example workflows, you need to have some additional custom nodes, like ComfyUI-VideoHelperSuite and others, installed. You can do it by pressing "Install Missing Custom Nodes" button in ComfyUI Manager.