ModelSamplingFlux - ComfyUI Built-in Node Documentation

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The ModelSamplingFlux node applies Flux model sampling to a given model by calculating a shift parameter based on image dimensions. It creates a specialized sampling configuration that adjusts the model’s behavior according to the specified width, height, and shift parameters, then returns the modified model with the new sampling settings applied.

Inputs

Parameter	Data Type	Required	Range	Description
`model`	MODEL	Yes	-	The model to apply Flux sampling to
`max_shift`	FLOAT	Yes	0.0 - 100.0	Maximum shift value for sampling calculation (default: 1.15)
`base_shift`	FLOAT	Yes	0.0 - 100.0	Base shift value for sampling calculation (default: 0.5)
`width`	INT	Yes	16 - MAX_RESOLUTION	Width of the target image in pixels (default: 1024)
`height`	INT	Yes	16 - MAX_RESOLUTION	Height of the target image in pixels (default: 1024)

Outputs

Output Name	Data Type	Description
`model`	MODEL	The modified model with Flux sampling configuration applied

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