GrokImageNode - ComfyUI Built-in Node Documentation

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The Grok Image node generates one or more images based on a text description using the Grok AI model. It sends your prompt to an external service and returns the generated images as tensors that can be used in your workflow.

Inputs

Parameter	Data Type	Required	Range	Description
`model`	COMBO	Yes	`"grok-imagine-image-beta"`	The specific Grok model to use for image generation.
`prompt`	STRING	Yes	N/A	The text prompt used to generate the image. This description guides the AI on what to create.
`aspect_ratio`	COMBO	Yes	`"1:1"` `"2:3"` `"3:2"` `"3:4"` `"4:3"` `"9:16"` `"16:9"` `"9:19.5"` `"19.5:9"` `"9:20"` `"20:9"` `"1:2"` `"2:1"`	The desired width-to-height ratio for the generated image.
`number_of_images`	INT	No	1 to 10	Number of images to generate (default: 1).
`seed`	INT	No	0 to 2147483647	A seed value to determine if the node should re-run. The actual image results are nondeterministic and will vary even with the same seed (default: 0).

Note: The seed parameter is primarily used to control when the node re-executes within a workflow. Due to the nature of the external AI service, the generated images will not be reproducible or identical across runs, even with an identical seed.

Outputs

Output Name	Data Type	Description
`output`	IMAGE	The generated image or a batch of images. If `number_of_images` is 1, a single image tensor is returned. If greater than 1, a batch of image tensors is returned.

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