GET

/v1/schemas/fal/image/fal-ai/stepx-edit2

Accept:

kind inputactivity imagehash 52e91b8b…extracted Jul 6, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `1a9f21d18439112bb9b7db87c38195b1285cf6f36fd642d28f7fe304046ee292` { "fetchedAt": 1783331098, "extractorVersion": "1", "verifiedAt": null }

Request body

11 properties · 2 required · 0 $defs

property	type	description	constraints
image_url*	string	The image URL to generate an image from. Needs to match the dimensions of the mask.
prompt*	string	The prompt to generate an image from.
enable_reflection_mode	boolean	Enable reflection mode. Reviews outputs, corrects unintended changes, and determines when editing is complete.	default: true
num_inference_steps	integer	The number of inference steps to perform. Recommended: 50.	1 ≤ n ≤ 100 · default: 50
seed	integer	The same seed and the same prompt given to the same version of the model will output the same image every time.	nullable
output_format	enum	The format of the generated image.	jpeg \| png · default: "jpeg"
negative_prompt	string	The negative prompt to use. Use it to address details that you don't want in the image. This could be colors, objects, scenery and even the small details (e.g. moustache, blurry, low resolution).	default: ""
enable_safety_checker	boolean	If set to true, the safety checker will be enabled.	default: true
guidance_scale	number	The true CFG scale. Controls how closely the model follows the prompt.	0 ≤ n ≤ 20 · default: 6
enable_thinking_mode	boolean	Enable thinking mode. Uses multimodal language model knowledge to interpret abstract editing instructions.	default: true
sync_mode	boolean	If `True`, the media will be returned as a data URI and the output data won't be available in the request history.	default: false

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/stepx-edit2","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}