Flux2ImageNode - ComfyUI Built-in Node Documentation

Generate images using the Flux.2 [pro] or Flux.2 [max] model from a text prompt and optional reference images. This node sends your request to the BFL API, polls for the result, and returns the generated image as a tensor.

Inputs

Parameter	Description	Data Type	Required	Range
`prompt`	Prompt for the image generation or edit (default: empty string).	STRING	Yes	N/A
`model`	The Flux.2 model version to use. Selecting a model unlocks additional parameters for width, height, and optional reference images.	COMBO	Yes	`"Flux.2 [pro]"` `"Flux.2 [max]"`
`seed`	The random seed used for creating the noise. Can be set to randomize after each generation (default: 0).	INT	Yes	0 to 18446744073709551615

Additional Parameters (unlocked by model selection): When you select a model, the following parameters become available:

Parameter	Description	Data Type	Required	Range
`model.width`	The width of the generated image in pixels.	INT	Yes	256 to 1440
`model.height`	The height of the generated image in pixels.	INT	Yes	256 to 1440
`model.images`	Optional reference images to guide the generation. A maximum of 8 images is supported.	IMAGE	No	0 to 8 images

Constraints:

The maximum number of reference images is 8. If more than 8 images are provided, an error will be raised.
The model.width and model.height values affect the cost of the generation.

Outputs

Output Name	Description	Data Type
`image`	The generated image as a tensor, downloaded from the BFL API result.	IMAGE

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