GET

/v1/schemas/fal/image/fal-ai%2Fflux-pro%2Fv1.1-ultra%2Fredux

kind inputactivity imagehash 368855f1extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

11 properties · 1 required · 0 $defs
propertytypedescriptionconstraints
image_url*stringThe image URL to generate an image from. Needs to match the dimensions of the mask.
num_imagesintegerThe number of images to generate.1 ≤ n ≤ 4 · default: 1
output_formatenumThe format of the generated image.jpeg | png · default: "jpeg"
safety_toleranceenumThe safety tolerance level for the generated image. 1 being the most strict and 5 being the most permissive.1 | 2 | 3 | 4 | 5 | 6 · default: "2"
sync_modebooleanIf `True`, the media will be returned as a data URI and the output data won't be available in the request history.default: false
rawbooleanGenerate less processed, more natural-looking images.default: false
seedinteger The same seed and the same prompt given to the same version of the model will output the same image every time. nullable
promptstringThe prompt to generate an image from.default: ""
enhance_promptbooleanWhether to enhance the prompt for better results.default: false
image_prompt_strengthnumberThe strength of the image prompt, between 0 and 1.0 ≤ n ≤ 1 · default: 0.1
aspect_ratioenum | stringThe aspect ratio of the generated image.default: "16:9"

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/flux-pro/v1.1-ultra/redux","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}