A simple, color-coded GGUF workflow for running LTXV-2 in ComfyUI.
Designed to be straightforward and lightweight.
Tested Hardware
Most videos: RTX 3060 (12GB VRAM) + 48GB RAM
Works on RTX 3050 Laptop (4GB VRAM) + 16GB RAM (enable Triton)
Common Issues
Error: LTXVEmptyLatentAudio – AttributeError
Update Kijai Node Pack to v1.2.8
Checkerboard / patterned noise output
Update all nodes + ComfyUI
(Outdated GGUF loader or ComfyUI build)
Required Node Packs
ComfyUI-GGUF
https://github.com/city96/ComfyUI-GGUF
ComfyUI-KJNodes
https://github.com/kijai/ComfyUI-KJNodes (install & update it!)
REQUIRED Models
Main Directory:
https://huggingface.co/Kijai/LTXV2_comfy/tree/main/
You need to download following models:
Diffusion (dev Q4_k_m less vram Q8_0 more vram):
https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/diffusion_models/ltx-2-19b-dev_Q4_K_M.gguf
https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/diffusion_models/ltx-2-19b-dev_Q8_0.gguf
Text Encoders (Gemma3 smaller files less vram, connector) Both are required:
https://huggingface.co/Comfy-Org/ltx-2/tree/main/split_files/text_encoders
https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/text_encoders/ltx-2-19b-embeddings_connector_dev_bf16.safetensors
VAE (bf16 audio + video) Both are required: https://huggingface.co/Kijai/LTXV2_comfy/tree/main/VAE
Latent Upscaler: https://huggingface.co/Lightricks/LTX-2/tree/main/ltx-2-spatial-upscaler-x2-1.0.safetensors
LoRAs
Distilled: https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/loras/ltx-2-19b-distilled-lora_resized_dynamic_fro09_avg_rank_175_fp8.safetensors
(Optional)
Camera: https://huggingface.co/Lightricks/LTX-2-19b-LoRA-Camera-Control-Dolly-Left/tree/main