GET

/v1/schemas/fal/image/bria/fibo/generate

Accept:

kind inputactivity imagehash f323ea39…extracted Jul 8, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `e86f0ac232862940633362566bc87a6dd3a0792d0208e824aecf868a1cc4be2c` { "fetchedAt": 1783487013, "extractorVersion": "1", "verifiedAt": null }

Request body

9 properties · 0 required · 5 $defs

property	type	description	constraints
structured_prompt	TailoredStructuredPrompt	Structured prompt for tailored-model requests, with the extra custom fields.	nullable
seed	integer	Random seed for reproducibility.	default: 5555
image_url	string	Reference image (file or URL).	nullable
aspect_ratio	enum	Aspect ratio. Options: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9	1:1 \| 2:3 \| 3:2 \| 3:4 \| 4:3 \| 4:5 · +3 more · default: "1:1"
resolution	enum	Output image resolution	1MP \| 4MP · default: "1MP"
prompt	string	Prompt for image generation.	nullable
sync_mode	boolean	If true, returns the image directly in the response (increases latency).	default: false
negative_prompt	string	Negative prompt for image generation.	default: ""
steps_num	integer	Number of inference steps.	20 ≤ n ≤ 50 · default: 50

Types

5 $defs

Aestheticsobject

composition	string	The composition of the image to be generated.	nullable
preference_score	string	The preference score of the image to be generated.	nullable
color_scheme	string	The color scheme of the image to be generated.	nullable
mood_atmosphere	string	The mood and atmosphere of the image to be generated.	nullable
aesthetic_score	string	The aesthetic score of the image to be generated.	nullable

Lightingobject

shadows	string	The shadows in the image to be generated.	nullable
direction	string	The direction of the lighting in the image to be generated.	nullable
conditions	string	The conditions of the lighting in the image to be generated.	nullable

PhotographicCharacteristicsobject

lens_focal_length	string	The focal length of the lens in the image to be generated.	nullable
camera_angle	string	The angle of the camera in the image to be generated.	nullable
focus	string	The focus in the image to be generated.	nullable
depth_of_field	string	The depth of field in the image to be generated.	nullable

PromptObjectobject

number_of_objects	integer	The number of objects in the image.	nullable
gender	string	The gender of the object in the image.	nullable
relative_size	string	The relative size of the object in the image.	nullable
action	string	The action of the object in the image.	nullable
appearance_details	string	The appearance details of the object.	nullable
texture	string	The texture of the object.	nullable
shape_and_color	string	The shape and color of the object.	nullable
clothing	string	The clothing of the object in the image.	nullable
orientation	string	The orientation of the object in the image.	nullable
relationship*	string	The relationship of the object to other objects in the image.
pose	string	The pose of the object in the image.	nullable
skin_tone_and_texture	string	The skin tone and texture of the object in the image.	nullable
description	string	A description of the object to be generated.	nullable
expression	string	The expression of the object in the image.	nullable
location	string	The location of the object in the image.	nullable

TailoredStructuredPromptobject

Structured prompt for tailored-model requests, with the extra custom fields.

text_render	any[]	A list of text to be rendered in the image.	nullable
photographic_characteristics	PhotographicCharacteristics	The photographic characteristics of the image to be generated.	nullable
artistic_style	string	The artistic style of the image to be generated.	nullable
style_medium	string	The style medium of the image to be generated.	nullable
art_direction	string		nullable
lighting	Lighting	The lighting of the image to be generated.	nullable
trigger_word	string		nullable
aesthetics	Aesthetics	The aesthetics of the image to be generated.	nullable
sub_trigger_word	string		nullable
action_description	string		nullable
context	string	The context of the image to be generated.	nullable
short_description	string	A short description of the image to be generated.	nullable
actor_prefix	string		nullable
objects	PromptObject[]	A list of objects in the image to be generated, along with their attributes and relationships to other objects in the image.	nullable
background_setting	string	The background setting of the image to be generated.	nullable

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"bria/fibo/generate","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}