Visual Model Merge SDXL

A ComfyUI custom node that provides an interactive curve editor for SDXL model block weight merging.

Features

• Visual curve editor for controlling merge weights across 21 SDXL blocks (9 input, 3 middle, 9 output)
• Gaussian smoothing for natural curve adjustments
• Color-coded sections: Blue (IN), Orange (MID), Green (OUT)
• Additional controls for time_embed, label_emb, and out layer weights

Installation

Install via the ComfyUI Manager, or you can clone this folder to your ComfyUI/custom_nodes/ directory and restart ComfyUI:

git clone https://github.com/jeremy-strang/ComfyUI-VisualModelMerge.git

Usage

1. Add the Visual Model Merge SDXL node (found under advanced/model_merging/visual)
2. Connect two SDXL models to model1 and model2 inputs
3. Drag on the curve to adjust block weights (values 0-100, converted to 0.0-1.0 internally)

See examples/VisualModelMergeSDXL.json for a sample workflow.

Controls

Action	Effect
Drag	Adjust curve with Gaussian smoothing applied to nearby blocks
Shift + Drag	Edit only the single block under the cursor
Smoothing Radius	Controls how many neighboring blocks are affected when dragging (1 = tight, 8 = wide)
Reset Weights	Returns all 21 block weights to 100

Merge Behavior

• 100 = Use model 1's weights fully for that block
• 0 = Use model 2's weights fully for that block
• Values in between blend proportionally