bria/fibo

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SOTA Open source model trained on licensed data, transforming intent into structured control for precise, high-quality AI image generation in enterprise and agentic workflows.

Capabilities

Reference Images Negative Prompt Seed

Cost

Community model (estimated from hardware time)

Input Parameters

Name	Type	Description	Default	Constraints
`prompt` *	string	Text prompt for image generation	`—`	—
`aspect_ratio`	string	Aspect ratio for expansion. Either aspect_ratio or canvas_size with original_image_size/location must be provided. Can be a predefined string like '1:1', '16:9' etc. or a custom float between 0.5 and 3.0	`"1:1"`	1:1 2:3 3:2 3:4 4:3 4:5 5:4 9:16 16:9
`guidance_scale`	integer	Guidance scale (1-10)	`—`	min: 3, max: 5
`image`	string (uri)	Image file	`—`	—
`negative_prompt`	string	Negative prompt for image generation	`—`	—
`seed`	integer	Random seed. Set for reproducible generation	`—`	—
`structured_prompt`	string	Structured prompt (JSON string). Use a structured_prompt from a previous generation's response or the /v2/structured_prompt/generate endpoint for precise refinement.	`""`	—

prompt required string

Text prompt for image generation

aspect_ratio string

Aspect ratio for expansion. Either aspect_ratio or canvas_size with original_image_size/location must be provided. Can be a predefined string like '1:1', '16:9' etc. or a custom float between 0.5 and 3.0

Default: "1:1"

1:1 2:3 3:2 3:4 4:3 4:5 5:4 9:16 16:9

guidance_scale integer

Guidance scale (1-10)

min: 3, max: 5

image string

Image file

negative_prompt string

Negative prompt for image generation

seed integer

Random seed. Set for reproducible generation

structured_prompt string

Structured prompt (JSON string). Use a structured_prompt from a previous generation's response or the /v2/structured_prompt/generate endpoint for precise refinement.

Default: ""

Version: 11d5854315b5 Updated: 2/26/2026 11.4K runs