GET

/v1/schemas/fal/image/fal-ai/flux-2/klein/4b/edit

Accept:

kind inputactivity imagehash 24f7e90c…extracted Aug 8, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `67bf7746ca8730a16e3e63a7fee6f9735f36a206d2e7c9db10d307bdb046239d` { "fetchedAt": 1786165357, "extractorVersion": "1", "verifiedAt": null }

Request body

9 properties · 2 required · 1 $defs

property	type	description	constraints
prompt*	string	The prompt to edit the image.
image_urls*	string[]	The URLs of the images for editing. A maximum of 4 images are allowed.
num_images	integer	The number of images to generate.	1 ≤ n ≤ 4 · default: 1
enable_safety_checker	boolean	If set to true, the safety checker will be enabled. Disabling it requires account authorization; unauthorized requests are always checked, and images flagged as unsafe are returned as black images.	default: true
num_inference_steps	integer	The number of inference steps to perform.	4 ≤ n ≤ 8 · default: 4
sync_mode	boolean	If `True`, the media will be returned as a data URI. Output is not stored when this is True.	default: false
image_size	ImageSize \| enum	The size of the generated image. If not provided, uses the input image size.	nullable
seed	integer	The seed to use for the generation. If not provided, a random seed will be used.	nullable
output_format	enum	The format of the generated image.	jpeg \| png \| webp · default: "png"

Types

1 $defs

ImageSizeobject

height	integer	The height of the generated image.	0 < n ≤ 14142 · default: 512
width	integer	The width of the generated image.	0 < n ≤ 14142 · default: 512

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/flux-2/klein/4b/edit","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}