ComfyUI-SimpleTunerFlux2

By flowers6421View on GitHub →

ComfyUI nodes for using SimpleTuner-trained Flux 2 LoRA models. SimpleTuner's Flux 2 architecture uses fused layers, making its LoRAs incompatible with standard ComfyUI Flux nodes. (Description by CC)

VRAM Requirements

Direct Answer: The ComfyUI node ComfyUI-SimpleTunerFlux2 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!

Deploy on High-Performance GPUs

Need more VRAM to run ComfyUI with this node? Rent low-cost, high-performance GPUs on Vast.ai instantly.

🚀 Deploy on Vast.ai

Deploy on Cloud GPUs

Need more VRAM to run ComfyUI with this node? Rent low-cost, high-performance cloud GPUs on RunPod instantly.

🚀 Deploy on RunPod

Python Dependencies

Direct Answer: Running ComfyUI-SimpleTunerFlux2 requires installing the following Python package dependencies: accelerate>=0.27.0, diffusers>=0.28.0, ftfy, hf_transfer, numpy>=1.24.0, peft>=0.10.0, pillow>=9.0.0, py3langid, safetensors>=0.4.0, torch>=2.0.0, transformers>=4.38.0. This node specifically requires PyTorch version 2.0.0 or newer.

requirements.txt
accelerate>=0.27.0
diffusers>=0.28.0
ftfy
hf_transfer
numpy>=1.24.0
peft>=0.10.0
pillow>=9.0.0
py3langid
safetensors>=0.4.0
torch>=2.0.0
transformers>=4.38.0

🛠️ Interactive Setup & Dependency Resolver

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

⚠️ Special Environment Requirements:

Requires PyTorch version 2.0.0+.

To update PyTorch for your selected setup, run:
# Loading PyTorch command...

Compatible Foundations

This node is verified to support or optimize workflows for the following foundation model families: