Editor's Note: This tutorial covers the full LTX 2.3 installation process in ComfyUI, including distilled model 1.1, image-to-video workflows, digital human setup, and LoRA usage.

LTX 2.3 ComfyUI Installation Guide

Overview

This comprehensive tutorial walks you through the entire process of setting up LTX 2.3 in ComfyUI, from initial installation to your first video generation.

What's Covered

Installation Steps

1. ComfyUI Setup: Installing ComfyUI and dependencies
2. Node Installation: Adding LTX Video nodes via Manager
3. Model Downloads: Getting the required model files (distilled 1.1)
4. Directory Setup: Organizing your model files correctly

Workflow Types

• Text-to-Video generation
• Image-to-Video animation (2 stable workflow variants)
• Digital human workflows
• LoRA integration
• Subtitle removal workflow

System Requirements

• GPU: NVIDIA with 12GB+ VRAM
• OS: Windows, Linux, or macOS
• Python: 3.10 or higher
• Storage: 50GB+ free space for models

Key Model Files

• Checkpoint: ltx-2.3-22b-distilled-1.1.safetensors
• VAE: taeltx2_3.safetensors (required)
• FP8 Variants: For 16GB VRAM GPUs

Quick Start Checklist

• Install ComfyUI
• Install LTX Video nodes
• Download model files
• Place files in correct directories
• Load example workflow
• Generate first video

Additional Resources

• Download LTX Models
• Workflow Templates
• Complete Setup Guide

Sources

• ComfyUI-LTXVideo Repository