ModelMergeSD1 - ComfyUI Built-in Node Documentation

Complete documentation for the ModelMergeSD1 node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The ModelMergeSD1 node allows you to blend two Stable Diffusion 1.x models together by adjusting the influence of different model components. It provides individual control over time embedding, label embedding, and all input, middle, and output blocks, enabling fine-tuned model merging for specific use cases.

Inputs

Parameter	Data Type	Required	Range	Description
model1	MODEL	Yes	-	The first model to merge
model2	MODEL	Yes	-	The second model to merge
time_embed.	FLOAT	Yes	0.0 - 1.0	Time embedding layer blending weight (default: 1.0)
label_emb.	FLOAT	Yes	0.0 - 1.0	Label embedding layer blending weight (default: 1.0)
input_blocks.0.	FLOAT	Yes	0.0 - 1.0	Input block 0 blending weight (default: 1.0)
input_blocks.1.	FLOAT	Yes	0.0 - 1.0	Input block 1 blending weight (default: 1.0)
input_blocks.2.	FLOAT	Yes	0.0 - 1.0	Input block 2 blending weight (default: 1.0)
input_blocks.3.	FLOAT	Yes	0.0 - 1.0	Input block 3 blending weight (default: 1.0)
input_blocks.4.	FLOAT	Yes	0.0 - 1.0	Input block 4 blending weight (default: 1.0)
input_blocks.5.	FLOAT	Yes	0.0 - 1.0	Input block 5 blending weight (default: 1.0)
input_blocks.6.	FLOAT	Yes	0.0 - 1.0	Input block 6 blending weight (default: 1.0)
input_blocks.7.	FLOAT	Yes	0.0 - 1.0	Input block 7 blending weight (default: 1.0)
input_blocks.8.	FLOAT	Yes	0.0 - 1.0	Input block 8 blending weight (default: 1.0)
input_blocks.9.	FLOAT	Yes	0.0 - 1.0	Input block 9 blending weight (default: 1.0)
input_blocks.10.	FLOAT	Yes	0.0 - 1.0	Input block 10 blending weight (default: 1.0)
input_blocks.11.	FLOAT	Yes	0.0 - 1.0	Input block 11 blending weight (default: 1.0)
middle_block.0.	FLOAT	Yes	0.0 - 1.0	Middle block 0 blending weight (default: 1.0)
middle_block.1.	FLOAT	Yes	0.0 - 1.0	Middle block 1 blending weight (default: 1.0)
middle_block.2.	FLOAT	Yes	0.0 - 1.0	Middle block 2 blending weight (default: 1.0)
output_blocks.0.	FLOAT	Yes	0.0 - 1.0	Output block 0 blending weight (default: 1.0)
output_blocks.1.	FLOAT	Yes	0.0 - 1.0	Output block 1 blending weight (default: 1.0)
output_blocks.2.	FLOAT	Yes	0.0 - 1.0	Output block 2 blending weight (default: 1.0)
output_blocks.3.	FLOAT	Yes	0.0 - 1.0	Output block 3 blending weight (default: 1.0)
output_blocks.4.	FLOAT	Yes	0.0 - 1.0	Output block 4 blending weight (default: 1.0)
output_blocks.5.	FLOAT	Yes	0.0 - 1.0	Output block 5 blending weight (default: 1.0)
output_blocks.6.	FLOAT	Yes	0.0 - 1.0	Output block 6 blending weight (default: 1.0)
output_blocks.7.	FLOAT	Yes	0.0 - 1.0	Output block 7 blending weight (default: 1.0)
output_blocks.8.	FLOAT	Yes	0.0 - 1.0	Output block 8 blending weight (default: 1.0)
output_blocks.9.	FLOAT	Yes	0.0 - 1.0	Output block 9 blending weight (default: 1.0)
output_blocks.10.	FLOAT	Yes	0.0 - 1.0	Output block 10 blending weight (default: 1.0)
output_blocks.11.	FLOAT	Yes	0.0 - 1.0	Output block 11 blending weight (default: 1.0)
out.	FLOAT	Yes	0.0 - 1.0	Output layer blending weight (default: 1.0)

Outputs

Output Name	Data Type	Description
MODEL	MODEL	The merged model combining features from both input models