> ## Documentation Index
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# ModelSamplingFlux - ComfyUI Built-in Node Documentation

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

> 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)

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 |