> ## 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.

# WanImageToImageApi - ComfyUI Built-in Node Documentation

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

The Wan Image to Image node generates an image from one or two input images and a text prompt. It transforms your input images based on the description you provide, creating a new image that maintains the aspect ratio of your original input. The output image is fixed at 1.6 megapixels regardless of the input size.

## Inputs

| Parameter         | Description                                                                                        | Data Type | Required | Range                |
| ----------------- | -------------------------------------------------------------------------------------------------- | --------- | -------- | -------------------- |
| `model`           | Model to use (default: "wan2.5-i2i-preview").                                                      | COMBO     | Yes      | "wan2.5-i2i-preview" |
| `image`           | Single-image editing or multi-image fusion, maximum 2 images.                                      | IMAGE     | Yes      | -                    |
| `prompt`          | Prompt describing the elements and visual features. Supports English and Chinese (default: empty). | STRING    | Yes      | -                    |
| `negative_prompt` | Negative prompt describing what to avoid (default: empty).                                         | STRING    | No       | -                    |
| `seed`            | Seed to use for generation (default: 0).                                                           | INT       | No       | 0 to 2147483647      |
| `watermark`       | Whether to add an AI-generated watermark to the result (default: false).                           | BOOLEAN   | No       | -                    |

**Note:** This node accepts exactly 1 or 2 input images. If you provide more than 2 images or no images at all, the node will return an error.

## Outputs

| Output Name | Description                                                     | Data Type |
| ----------- | --------------------------------------------------------------- | --------- |
| `image`     | The generated image based on the input images and text prompts. | IMAGE     |

> 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/WanImageToImageApi/en.md)

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