LumaImageNode - ComfyUI Built-in Node Documentation

Generates images synchronously based on a text prompt and aspect ratio. This node creates images using text descriptions and allows you to control the image dimensions and style through various reference inputs, including character and style images.

Inputs

Parameter	Description	Data Type	Required	Range
`prompt`	Prompt for the image generation (default: empty string). Must be at least 3 characters long.	STRING	Yes	-
`model`	Model selection for image generation. Different models have different costs.	COMBO	Yes	`photon-flash-1` `photon-1` `photon`
`aspect_ratio`	Aspect ratio for the generated image (default: `16:9`)	COMBO	Yes	`16:9` `1:1` `4:3` `3:2` `21:9` `9:16` `3:4` `2:3` `9:21`
`seed`	Seed to determine if node should re-run; actual results are nondeterministic regardless of seed (default: 0)	INT	Yes	0 to 18446744073709551615
`style_image_weight`	Weight of style image. Ignored if no `style_image` is provided (default: 1.0)	FLOAT	No	0.0 to 1.0
`image_luma_ref`	Luma Reference node connection to influence generation with input images; up to 4 images can be considered.	LUMA_REF	No	-
`style_image`	Style reference image; only 1 image will be used.	IMAGE	No	-
`character_image`	Character reference images; can be a batch of multiple, up to 4 images can be considered.	IMAGE	No	-

Parameter Constraints:

The prompt must be at least 3 characters long after stripping whitespace.
The image_luma_ref parameter can accept up to 4 reference images.
The character_image parameter can accept up to 4 character reference images.
The style_image parameter accepts only 1 style reference image.
The style_image_weight parameter is only used when style_image is provided.

Outputs

Output Name	Description	Data Type
`output`	The generated image based on the input parameters.	IMAGE

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Inputs

Outputs