WanImageToImageApi - ComfyUI Built-in Node Documentation

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

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Outputs