FASTEST VIDEO GEN 🤯│LTXV Video Generation in ComfyUI: Complete Setup & Workflow Guide

Hello Black Mixture Fam! 👋

We're excited to dive into the latest addition to our toolkit: LTXV video generation! Day one support just dropped for the brand new model LTXV from Lightricks, and I've been testing it extensively to bring you this brand new workflow and comprehensive guide. Right now this is the FASTEST local video generator, allowing you to produce 2 second/24fps videos in roughly 8 seconds on an RTX 4090. Compared to previous models like CogVideoX or Mochi which would take roughly 10 - 20 minutes per generation, Lightricks' new LTXV model is insane!

📦 Here's what you'll need:

Main Components 🔧

• Main Checkpoint Model

  • Download from: huggingface.co/Lightricks/LTX-Video

  • Place in: ComfyUI\models\checkpoints

• CLIP Model 🎯

  • Get it from: huggingface.co/comfyanonymous/flux_text_encoders

  • Place in: ComfyUI\models\clip

Essential Workflows

We've created two optimized workflows that cover the most common video generation needs. As with all of our workflows, start from left to right.

Step 1. Load Models & Images

Step 2. Type in your Prompt (You can leave the default negative prompt)

Step 3. Name your project and video output.

1. 📝Text-to-Video Workflow

This is our go-to for creating videos from text prompts. The more detailed, the better the results.

2.  🖼️ Image-to-Video Workflow
Perfect for bringing your existing images to life or creating consistent style animations.

Key Features

• Clean, optimized, & color-coded node setup

• Built-in best recommended settings

• Customizable video length and dimensions

Examples + Tips

Text-to-Video:

A man walks towards a window, looks out, and then turns around...A man walks towards a window, looks out, and then turns around. He has short, dark hair, dark skin, and is wearing a brown coat over a red and gray scarf. He walks from left to right towards a window, his gaze fixed on something outside. The camera follows him from behind at a medium distance. The room is brightly lit, with white walls and a large window covered by a white curtain. As he approaches the window, he turns his head slightly to the left, then back to the right. He then turns his entire body to the right, facing the window. The camera remains stationary as he stands in front of the window. The scene is captured in real-life footage.

Image-to-Video:

4k, high quality, house burning, on fire, smoke rises

General tips:

• The model works on resolutions that are divisible by 32 and number of frames that are divisible by 8 + 1 (e.g. 257). In case the resolution or number of frames are not divisible by 32 or 8 + 1, the input will be padded with -1 and then cropped to the desired resolution and number of frames.

• The model works best on resolutions under 720 x 1280 and number of frames below 257.

• Prompts should be in English. The more elaborate the better. Good prompt looks like

  The turquoise waves crash against the dark, jagged rocks of the shore, sending white foam spraying into the air. The scene is dominated by the stark contrast between the bright blue water and the dark, almost black rocks. The water is a clear, turquoise color, and the waves are capped with white foam. The rocks are dark and jagged, and they are covered in patches of green moss. The shore is lined with lush green vegetation, including trees and bushes. In the background, there are rolling hills covered in dense forest. The sky is cloudy, and the light is dim.