GET

/v1/schemas/fal/image/fal-ai/flux-2/klein/9b/lora

kind inputactivity imagehash fe0d3488…extracted Nov 13, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
60f50a369ab47647c9fdf2018194d751298c0583fa8b3af20e82e53c9c9dd7b6
{
  "fetchedAt": 1794546001,
  "extractorVersion": "2",
  "verifiedAt": null
}

Request body

9 properties · 1 required · 2 $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
output_formatenumThe format of the generated image.jpeg | png | webp · default: "png"
image_sizeImageSize | enumThe size of the image to generate.default: "landscape_4_3"
seedintegerThe seed to use for the generation. If not provided, a random seed will be used.nullable
sync_modebooleanIf `True`, the media will be returned as a data URI. Output is not stored when this is True.default: false
lorasfal-ai_flux-2-klein_LoRAInput[]List of LoRA weights to apply (maximum 3).items ≤ 3 · default: []
num_inference_stepsintegerThe number of inference steps to perform.4 ≤ n ≤ 8 · default: 4
num_imagesintegerThe number of images to generate.1 ≤ n ≤ 4 · default: 1

Types

2 $defs

fal-ai_flux-2-klein_LoRAInputobject

scalenumberScale factor for LoRA application (0.0 to 4.0).0 ≤ n ≤ 4 · default: 1
path*stringURL or HuggingFace repo ID (owner/repo) of the LoRA weights.

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/flux-2/klein/9b/lora","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}