ModelMergeFlux1 - ComfyUI Built-in Node Documentation

Complete documentation for the ModelMergeFlux1 node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The ModelMergeFlux1 node merges two diffusion models by blending their components using weighted interpolation. It allows fine-grained control over how different parts of the models are combined, including image processing blocks, time embedding layers, guidance mechanisms, vector inputs, text encoders, and various transformer blocks. This enables creating hybrid models with customized characteristics from two source models.

Inputs

Parameter	Data Type	Required	Range	Description
model1	MODEL	Yes	-	First source model to merge
model2	MODEL	Yes	-	Second source model to merge
img_in.	FLOAT	Yes	0.0 to 1.0	Image input interpolation weight (default: 1.0)
time_in.	FLOAT	Yes	0.0 to 1.0	Time embedding interpolation weight (default: 1.0)
guidance_in	FLOAT	Yes	0.0 to 1.0	Guidance mechanism interpolation weight (default: 1.0)
vector_in.	FLOAT	Yes	0.0 to 1.0	Vector input interpolation weight (default: 1.0)
txt_in.	FLOAT	Yes	0.0 to 1.0	Text encoder interpolation weight (default: 1.0)
double_blocks.0.	FLOAT	Yes	0.0 to 1.0	Double block 0 interpolation weight (default: 1.0)
double_blocks.1.	FLOAT	Yes	0.0 to 1.0	Double block 1 interpolation weight (default: 1.0)
double_blocks.2.	FLOAT	Yes	0.0 to 1.0	Double block 2 interpolation weight (default: 1.0)
double_blocks.3.	FLOAT	Yes	0.0 to 1.0	Double block 3 interpolation weight (default: 1.0)
double_blocks.4.	FLOAT	Yes	0.0 to 1.0	Double block 4 interpolation weight (default: 1.0)
double_blocks.5.	FLOAT	Yes	0.0 to 1.0	Double block 5 interpolation weight (default: 1.0)
double_blocks.6.	FLOAT	Yes	0.0 to 1.0	Double block 6 interpolation weight (default: 1.0)
double_blocks.7.	FLOAT	Yes	0.0 to 1.0	Double block 7 interpolation weight (default: 1.0)
double_blocks.8.	FLOAT	Yes	0.0 to 1.0	Double block 8 interpolation weight (default: 1.0)
double_blocks.9.	FLOAT	Yes	0.0 to 1.0	Double block 9 interpolation weight (default: 1.0)
double_blocks.10.	FLOAT	Yes	0.0 to 1.0	Double block 10 interpolation weight (default: 1.0)
double_blocks.11.	FLOAT	Yes	0.0 to 1.0	Double block 11 interpolation weight (default: 1.0)
double_blocks.12.	FLOAT	Yes	0.0 to 1.0	Double block 12 interpolation weight (default: 1.0)
double_blocks.13.	FLOAT	Yes	0.0 to 1.0	Double block 13 interpolation weight (default: 1.0)
double_blocks.14.	FLOAT	Yes	0.0 to 1.0	Double block 14 interpolation weight (default: 1.0)
double_blocks.15.	FLOAT	Yes	0.0 to 1.0	Double block 15 interpolation weight (default: 1.0)
double_blocks.16.	FLOAT	Yes	0.0 to 1.0	Double block 16 interpolation weight (default: 1.0)
double_blocks.17.	FLOAT	Yes	0.0 to 1.0	Double block 17 interpolation weight (default: 1.0)
double_blocks.18.	FLOAT	Yes	0.0 to 1.0	Double block 18 interpolation weight (default: 1.0)
single_blocks.0.	FLOAT	Yes	0.0 to 1.0	Single block 0 interpolation weight (default: 1.0)
single_blocks.1.	FLOAT	Yes	0.0 to 1.0	Single block 1 interpolation weight (default: 1.0)
single_blocks.2.	FLOAT	Yes	0.0 to 1.0	Single block 2 interpolation weight (default: 1.0)
single_blocks.3.	FLOAT	Yes	0.0 to 1.0	Single block 3 interpolation weight (default: 1.0)
single_blocks.4.	FLOAT	Yes	0.0 to 1.0	Single block 4 interpolation weight (default: 1.0)
single_blocks.5.	FLOAT	Yes	0.0 to 1.0	Single block 5 interpolation weight (default: 1.0)
single_blocks.6.	FLOAT	Yes	0.0 to 1.0	Single block 6 interpolation weight (default: 1.0)
single_blocks.7.	FLOAT	Yes	0.0 to 1.0	Single block 7 interpolation weight (default: 1.0)
single_blocks.8.	FLOAT	Yes	0.0 to 1.0	Single block 8 interpolation weight (default: 1.0)
single_blocks.9.	FLOAT	Yes	0.0 to 1.0	Single block 9 interpolation weight (default: 1.0)
single_blocks.10.	FLOAT	Yes	0.0 to 1.0	Single block 10 interpolation weight (default: 1.0)
single_blocks.11.	FLOAT	Yes	0.0 to 1.0	Single block 11 interpolation weight (default: 1.0)
single_blocks.12.	FLOAT	Yes	0.0 to 1.0	Single block 12 interpolation weight (default: 1.0)
single_blocks.13.	FLOAT	Yes	0.0 to 1.0	Single block 13 interpolation weight (default: 1.0)
single_blocks.14.	FLOAT	Yes	0.0 to 1.0	Single block 14 interpolation weight (default: 1.0)
single_blocks.15.	FLOAT	Yes	0.0 to 1.0	Single block 15 interpolation weight (default: 1.0)
single_blocks.16.	FLOAT	Yes	0.0 to 1.0	Single block 16 interpolation weight (default: 1.0)
single_blocks.17.	FLOAT	Yes	0.0 to 1.0	Single block 17 interpolation weight (default: 1.0)
single_blocks.18.	FLOAT	Yes	0.0 to 1.0	Single block 18 interpolation weight (default: 1.0)
single_blocks.19.	FLOAT	Yes	0.0 to 1.0	Single block 19 interpolation weight (default: 1.0)
single_blocks.20.	FLOAT	Yes	0.0 to 1.0	Single block 20 interpolation weight (default: 1.0)
single_blocks.21.	FLOAT	Yes	0.0 to 1.0	Single block 21 interpolation weight (default: 1.0)
single_blocks.22.	FLOAT	Yes	0.0 to 1.0	Single block 22 interpolation weight (default: 1.0)
single_blocks.23.	FLOAT	Yes	0.0 to 1.0	Single block 23 interpolation weight (default: 1.0)
single_blocks.24.	FLOAT	Yes	0.0 to 1.0	Single block 24 interpolation weight (default: 1.0)
single_blocks.25.	FLOAT	Yes	0.0 to 1.0	Single block 25 interpolation weight (default: 1.0)
single_blocks.26.	FLOAT	Yes	0.0 to 1.0	Single block 26 interpolation weight (default: 1.0)
single_blocks.27.	FLOAT	Yes	0.0 to 1.0	Single block 27 interpolation weight (default: 1.0)
single_blocks.28.	FLOAT	Yes	0.0 to 1.0	Single block 28 interpolation weight (default: 1.0)
single_blocks.29.	FLOAT	Yes	0.0 to 1.0	Single block 29 interpolation weight (default: 1.0)
single_blocks.30.	FLOAT	Yes	0.0 to 1.0	Single block 30 interpolation weight (default: 1.0)
single_blocks.31.	FLOAT	Yes	0.0 to 1.0	Single block 31 interpolation weight (default: 1.0)
single_blocks.32.	FLOAT	Yes	0.0 to 1.0	Single block 32 interpolation weight (default: 1.0)
single_blocks.33.	FLOAT	Yes	0.0 to 1.0	Single block 33 interpolation weight (default: 1.0)
single_blocks.34.	FLOAT	Yes	0.0 to 1.0	Single block 34 interpolation weight (default: 1.0)
single_blocks.35.	FLOAT	Yes	0.0 to 1.0	Single block 35 interpolation weight (default: 1.0)
single_blocks.36.	FLOAT	Yes	0.0 to 1.0	Single block 36 interpolation weight (default: 1.0)
single_blocks.37.	FLOAT	Yes	0.0 to 1.0	Single block 37 interpolation weight (default: 1.0)
final_layer.	FLOAT	Yes	0.0 to 1.0	Final layer interpolation weight (default: 1.0)

Outputs

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