GET

/v1/schemas/fal/image/fal-ai/hidream-i1-dev

kind inputactivity imagehash ca6af589…extracted Aug 10, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.
Source trace
60eccb0d3ad7866730e8e875bdf6e20367955d2d57fd4a46cd5c88529c7c0807
{
  "fetchedAt": 1786338105,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

9 properties · 1 required · 1 $defs
propertytypedescriptionconstraints
prompt*stringThe prompt to generate an image from.
enable_safety_checkerbooleanIf 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
negative_promptstringThe 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: ""
image_sizeImageSize | enumThe size of the generated image.default: {"width":1024,"height":1024}
num_imagesintegerThe number of images to generate.1 ≤ n ≤ 4 · default: 1
output_formatenumThe format of the generated image.jpeg | png · default: "jpeg"
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
num_inference_stepsintegerThe number of inference steps to perform.1 ≤ n ≤ 50 · default: 28
seedinteger The same seed and the same prompt given to the same version of the model will output the same image every time. nullable

Types

1 $defs

ImageSizeobject

widthintegerThe width of the generated image.0 < n ≤ 14142 · default: 512
heightintegerThe height 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/hidream-i1-dev","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}