GET

/v1/schemas/fal/image/fal-ai/flux-lora

kind inputactivity imagehash 82b40ad2…extracted Oct 28, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
3b75734cc1475f023918e3f34725dc8426a33d26d1709efcc0d2840210b0c5ff
{
  "fetchedAt": 1793163602,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

11 properties · 1 required · 2 $defs
propertytypedescriptionconstraints
prompt*stringThe prompt to generate an image from.
accelerationenumAcceleration level for image generation. 'regular' balances speed and quality.none | regular · default: "none"
output_formatenumThe format of the generated image.jpeg | png · default: "jpeg"
num_imagesintegerThe number of images to generate. This is always set to 1 for streaming output.1 ≤ n ≤ 4 · default: 1
image_sizeImageSize | enumThe size of the generated image.default: "landscape_4_3"
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
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
lorasLoraWeight[]The LoRAs to use for the image generation. You can use any number of LoRAs and they will be merged together to generate the final image.default: []
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
guidance_scalenumberThe CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.0 ≤ n ≤ 35 · default: 3.5

Types

2 $defs

ImageSizeobject

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

LoraWeightobject

scalenumberThe scale of the LoRA weight. This is used to scale the LoRA weight before merging it with the base model.0 ≤ n ≤ 4 · default: 1
path*stringURL or the path to the LoRA weights.

Validate a payload

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