black-forest-labs/flux-1.1-pro

Faster, better FLUX Pro. Text-to-image model with excellent image quality, prompt adherence, and output diversity.

Capabilities

1:14:33:416:99:162:33:2Reference ImagesSeed

Cost

$0.040 / image

Input Parameters

Name	Type	Description	Default	Constraints
`prompt`*	string	Text prompt for image generation	`—`	—
`aspect_ratio`	string	Aspect ratio for the generated image	`"1:1"`	custom1:116:93:22:34:55:49:163:44:3
`height`	integer	Height of the generated image in text-to-image mode. Only used when aspect_ratio=custom. Must be a multiple of 32 (if it's not, it will be rounded to nearest multiple of 32). Note: Ignored in img2img and inpainting modes.	`—`	min: 256, max: 1440
`image_prompt`	string(uri)	Image to use with Flux Redux. This is used together with the text prompt to guide the generation towards the composition of the image_prompt. Must be jpeg, png, gif, or webp.	`—`	—
`output_format`	string	Format of the output images.	`"webp"`	webpjpgpng
`output_quality`	integer	Quality when saving the output images, from 0 to 100. 100 is best quality, 0 is lowest quality. Not relevant for .png outputs	`80`	min: 0, max: 100
`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	`—`	—
`width`	integer	Width of the generated image in text-to-image mode. Only used when aspect_ratio=custom. Must be a multiple of 32 (if it's not, it will be rounded to nearest multiple of 32). Note: Ignored in img2img and inpainting modes.	`—`	min: 256, max: 1440

promptrequiredstring

Text prompt for image generation

aspect_ratiostring

Aspect ratio for the generated image

Default: "1:1"

custom1:116:93:22:34:55:49:163:44:3

heightinteger

Height of the generated image in text-to-image mode. Only used when aspect_ratio=custom. Must be a multiple of 32 (if it's not, it will be rounded to nearest multiple of 32). Note: Ignored in img2img and inpainting modes.

min: 256, max: 1440

image_promptstring

Image to use with Flux Redux. This is used together with the text prompt to guide the generation towards the composition of the image_prompt. Must be jpeg, png, gif, or webp.

output_formatstring

Format of the output images.

Default: "webp"

webpjpgpng

output_qualityinteger

Quality when saving the output images, from 0 to 100. 100 is best quality, 0 is lowest quality. Not relevant for .png outputs

Default: 80min: 0, max: 100

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

widthinteger

Width of the generated image in text-to-image mode. Only used when aspect_ratio=custom. Must be a multiple of 32 (if it's not, it will be rounded to nearest multiple of 32). Note: Ignored in img2img and inpainting modes.

min: 256, max: 1440

Version: 609793a667edUpdated: 8/1/202672.0M runs