ComfyUI_UltraFlux

By smthemexView on GitHub →

UltraFlux:Data-Model Co-Design for High-quality Native 4K Text-to-Image Generation across Diverse Aspect Ratios,try it in comfyUI

How much VRAM does ComfyUI_UltraFlux require?

Direct Answer: The ComfyUI node ComfyUI_UltraFlux requires a minimum base VRAM of 12288MB and is optimized for GPUs with at least 24GB of VRAM. Low VRAM mode is not supported for this node.

Extreme (>8GB)
Base VRAM:
12288MB (12.0GB)
Recommended GPU:
24GB+ VRAM
Low VRAM Mode:
✗ Not supported
Estimation Confidence:
HIGH

Interactive VRAM Compatibility Estimator

Estimated Total VRAM: 3.00 GBTarget: 8 GB
✅ Comfortable Fit

Your GPU has plenty of headroom. You can run this node safely with your active configurations!

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Deploy on Cloud GPUs

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What Python packages are required for ComfyUI_UltraFlux?

Direct Answer: Running ComfyUI_UltraFlux requires installing the following Python package dependencies: accelerate, diffusers, torch, transformers. Ensure your ComfyUI environment has these packages active before launching.

requirements.txt
accelerate
diffusers
torch
transformers

Interactive Setup & Dependency Resolver

Operating System:
Environment Type:
Run this terminal command in your ComfyUI root folder:
# Loading command...

Related Custom Nodes

The following custom nodes run in the same PyTorch / CUDA environment and share similar categories or workflows:

ComfyUI_GRAG_Image_Editing
by smthemex128MB VRAM
ComfyUI_InteractAvatar
by smthemex256MB VRAM
ComfyUI_JoyAI_Image
by smthemex128MB VRAM
ComfyUI_LucidFlux
by smthemex12.0GB VRAM
ComfyUI_PhotoDoodle
by smthemex128MB VRAM

Frequently Asked Questions

How much VRAM does ComfyUI_UltraFlux require?

ComfyUI_UltraFlux requires a minimum of 12288MB (12.0GB) of VRAM for base operation. For optimal performance, a GPU with at least 24GB of VRAM is recommended. Low VRAM mode is not supported for this node.

Can I run ComfyUI_UltraFlux on an RTX 3060, RTX 4070, or RTX 4090?

❌ RTX 3060 (12GB): Insufficient VRAM (needs 12.0GB minimum). ❌ RTX 4070 (12GB): Insufficient VRAM (needs 12.0GB minimum). ⚠️ RTX 4070 Ti (16GB): Can run, but may experience performance issues or require low VRAM mode. ✅ RTX 4090 (24GB): Yes, fully compatible with 9.6GB headroom

What PyTorch version does ComfyUI_UltraFlux need?

ComfyUI_UltraFlux requires the following PyTorch-related packages: torch. Ensure your ComfyUI environment has these installed. Ensure your PyTorch installation matches your CUDA version (use torch.version.cuda to check).

What Python packages are required for ComfyUI_UltraFlux?

To run ComfyUI_UltraFlux, you need to install: accelerate, diffusers, torch, transformers. You can install these using pip or add them to your requirements.txt file.

How do I install ComfyUI_UltraFlux in ComfyUI?

To install ComfyUI_UltraFlux: (1) Navigate to your ComfyUI/custom_nodes directory, (2) Clone the repository: git clone https://github.com/smthemex/ComfyUI_UltraFlux, (3) Install dependencies: pip install -r requirements.txt (if present), (4) Restart ComfyUI. Alternatively, use ComfyUI Manager for one-click installation.