black-forest-labs/flux-fill-pro

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Professional inpainting and outpainting model with state-of-the-art performance. Edit or extend images with natural, seamless results.

Capabilities

Reference ImagesSeed

Cost

Community model (estimated from hardware time)

Input Parameters

Name	Type	Description	Default	Constraints
`image`*	string(uri)	The image to inpaint. Can contain an alpha mask. Must be jpeg, png, gif, or webp.	`—`	—
`prompt`*	string	Text prompt for image generation	`—`	—
`guidance`	number	Controls the balance between adherence to the text prompt and image quality/diversity. Higher values make the output more closely match the prompt but may reduce overall image quality. Lower values allow for more creative freedom but might produce results less relevant to the prompt.	`60`	min: 1.5, max: 100
`mask`	string(uri)	A black-and-white image that describes the part of the image to inpaint. Black areas will be preserved while white areas will be inpainted. Must have the same size as image. Optional if you provide an alpha mask in the original image. Must be jpeg, png, gif, or webp.	`—`	—
`outpaint`	string	A quick option for outpainting an input image. Mask will be ignored.	`"None"`	NoneZoom out 1.5xZoom out 2xMake squareLeft outpaintRight outpaintTop outpaintBottom outpaint
`output_format`	string	Format of the output images.	`"jpg"`	jpgpng
`prompt_upsampling`	boolean	Automatically modify the prompt for more creative generation	`false`	—
`safety_tolerance`	integer	Safety tolerance, 1 is most strict and 6 is most permissive	`2`	min: 1, max: 6
`seed`	integer	Random seed. Set for reproducible generation	`—`	—
`steps`	integer	Number of diffusion steps. Higher values yield finer details but increase processing time.	`50`	min: 15, max: 50

imagerequiredstring

The image to inpaint. Can contain an alpha mask. Must be jpeg, png, gif, or webp.

promptrequiredstring

Text prompt for image generation

guidancenumber

Controls the balance between adherence to the text prompt and image quality/diversity. Higher values make the output more closely match the prompt but may reduce overall image quality. Lower values allow for more creative freedom but might produce results less relevant to the prompt.

Default: 60min: 1.5, max: 100

maskstring

A black-and-white image that describes the part of the image to inpaint. Black areas will be preserved while white areas will be inpainted. Must have the same size as image. Optional if you provide an alpha mask in the original image. Must be jpeg, png, gif, or webp.

outpaintstring

A quick option for outpainting an input image. Mask will be ignored.

Default: "None"

NoneZoom out 1.5xZoom out 2xMake squareLeft outpaintRight outpaintTop outpaintBottom outpaint

output_formatstring

Format of the output images.

Default: "jpg"

jpgpng

prompt_upsamplingboolean

Automatically modify the prompt for more creative generation

Default: false

safety_toleranceinteger

Safety tolerance, 1 is most strict and 6 is most permissive

Default: 2min: 1, max: 6

seedinteger

Random seed. Set for reproducible generation

stepsinteger

Number of diffusion steps. Higher values yield finer details but increase processing time.

Default: 50min: 15, max: 50

Version: 41c767bcbfffUpdated: 7/25/20264.0M runs