> ## 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.

# WavespeedImageUpscaleNode - ComfyUI Built-in Node Documentation

> Complete documentation for the WavespeedImageUpscaleNode 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/WavespeedImageUpscaleNode/en.md)

The WaveSpeed Image Upscale node uses an external AI service to increase the resolution and quality of an image. It takes a single input photo and upscales it to a higher target resolution, such as 2K, 4K, or 8K, producing a sharper and more detailed result.

## Inputs

| Parameter           | Data Type | Required | Range                          | Description                                                                                            |
| ------------------- | --------- | -------- | ------------------------------ | ------------------------------------------------------------------------------------------------------ |
| `model`             | STRING    | Yes      | `"SeedVR2"`<br />`"Ultimate"`  | The AI model to use for upscaling. "SeedVR2" and "Ultimate" offer different quality and pricing tiers. |
| `image`             | IMAGE     | Yes      |                                | The input image to be upscaled.                                                                        |
| `target_resolution` | STRING    | Yes      | `"2K"`<br />`"4K"`<br />`"8K"` | The desired output resolution for the upscaled image.                                                  |

**Note:** This node requires exactly one input image. Providing a batch of images will result in an error.

## Outputs

| Output Name | Data Type | Description                                 |
| ----------- | --------- | ------------------------------------------- |
| `image`     | IMAGE     | The upscaled, high-resolution output image. |