A simple, color-coded GGUF workflow for running LTXV-2 in ComfyUI. Designed to be straightforward and lightweight.
Runtime profile
Source description
A simple, color-coded GGUF workflow for running LTXV-2 in ComfyUI. Designed to be straightforward and lightweight.
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Update all nodes + ComfyUI (Outdated GGUF loader or ComfyUI build)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
Sources
1 sourceSource excerpts
1 excerptSource context: 4764 downloads · Type Workflows · Base model LTXV2
ComfyUI-KJNodes https://github.com/kijai/ComfyUI-KJNodes (install & update it to nightly)
additional install via manager
📦 Downloads
🧩 Kijai’s Repo (ALL files except diffusion models — choose ONE LoRA)
Includes:
Distilled LoRA ( REQUIRED )
Text Projection (embedding connector)
🧠 Diffusion Models (GGUF)
Choose based on VRAM:
Q4_K_M → lower VRAM ( recommended )
Q8_0 → higher quality, more VRAM
⚠️ Very low quants = basically unusable
Includes:
VAE (audio + video)
GGUF models
✍️ Text Encoders ( REQUIRED )
Option 1 – Gemma (recommended for low VRAM)
Option 2 – Full version (higher VRAM, better quality)
➡️ You still ALSO need:
Text Projection (from Kijai’s repo)
🔍 Latent Upscaler
Files:
ltx-2-spatial-upscaler-x2-1.0.safetensors
ltx-2-temporal-upscaler-x2-1.0.safetensors
⚠️ Important Notes
Use DEV GGUF diffusion models (no distilled base model yet)
Distilled LoRA is still REQUIRED
Most issues = outdated nodes or ComfyUI
.
Remaining hardware or download-size estimates are not available yet.
Requirements
Text encoder · 8.80 GB · SAFETENSORS · bf16 · Unknown
Checkpoint · 11.8 GB · Hugging Face · Kijai/LTXV2_comfy
LoRA · 7.15 GB · Hugging Face · Lightricks/LTX-2
ltx-2-19b-embeddings_connector_dev_bf16.safetensors
Not resolvedText encoder · Unknown
ltx-2-spatial-upscaler-x2-1.0.safetensors
File unverifiedUpscaler · Hugging Face · Lightricks/LTX-2 · LTX 2
LTX2_audio_vae_bf16.safetensors
Not resolvedVAE · Unknown
LTX2_video_vae_bf16.safetensors
Not resolvedVAE · Unknown