> ## Documentation Index
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# 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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