> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# ModelSamplingFlux - ComfyUI Built-in Node Documentation

> The ModelSamplingFlux node applies Flux model sampling to a given model by calculating a shift parameter based on image dimensions.

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 | Description | Data Type | Required | Range |
| - | - | - | - | - |
| `model` | The model to apply Flux sampling to | MODEL | Yes | - |
| `max_shift` | Maximum shift value for sampling calculation (default: 1.15) | FLOAT | Yes | 0.0 - 100.0 (step 0.01) |
| `base_shift` | Base shift value for sampling calculation (default: 0.5) | FLOAT | Yes | 0.0 - 100.0 (step 0.01) |
| `width` | Width of the target image in pixels (default: 1024) | INT | Yes | 16 - MAX\_RESOLUTION (step 8) |
| `height` | Height of the target image in pixels (default: 1024) | INT | Yes | 16 - MAX\_RESOLUTION (step 8) |

`max_shift` and `base_shift` are advanced parameters. The shift applied to the sampling configuration is calculated from the image dimensions: the latent resolution is computed as `width × height / 256`, and the shift value is interpolated between `base_shift` at a latent resolution of 256 and `max_shift` at a latent resolution of 4096.

## Outputs

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

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/ModelSamplingFlux/en.md)

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