BriaGenFill - ComfyUI Built-in Node Documentation - ComfyUI

This node generates objects or scenery inside a masked region of an image using the Bria API. It uploads the image and mask, sends the prompt to the Bria generative fill service, waits for the operation to complete, and returns the edited image. This is a paid API operation (US$0.0429 per request).

Inputs

Common Inputs

Parameter	Description	Data Type	Required	Range
`image`	The input image to edit.	IMAGE	Yes	-
`mask`	White areas are filled with generated content, black areas are preserved. The mask is binarized before sending, so partially painted areas count as white. Must have the same aspect ratio as the image.	MASK	Yes	-
`prompt`	Description of what to generate inside the masked region. Must contain at least 1 character. (default: "")	STRING	Yes	-
`negative_prompt`	A prompt describing content to avoid in the generated result. If left empty, it is not sent to the API. (default: "")	STRING	Yes	-
`refine_prompt`	Automatically adjust the prompt for better results; disable to use the prompt exactly as written. (default: true)	BOOLEAN	Yes	true false
`seed`	Seed for the generation process. (default: 42)	INT	Yes	1 to 2147483647
`moderation`	Moderation settings. When set to “true”, the moderation options below are applied. (default: “false”)	DYNAMIC_COMBO	Yes	”false" "true”

Moderation Inputs (when `moderation` = “true”)

Parameter	Description	Data Type	Required	Range
`prompt_content_moderation`	Applies content moderation to the prompt. (default: false)	BOOLEAN	No	true false
`visual_input_moderation`	Applies content moderation to the input image. (default: false)	BOOLEAN	No	true false
`visual_output_moderation`	Applies content moderation to the output image. (default: false)	BOOLEAN	No	true false

Note: The prompt must not be empty. The mask must have the same aspect ratio as the image. The mask is binarized at 50% opacity, so areas painted at less than half opacity are ignored; if the mask contains no white areas after binarization, the node raises an error.

Outputs

Output Name	Description	Data Type
`image`	The resulting image with the masked region filled by the generated content.	IMAGE

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