GET

/v1/schemas/fal/image/fal-ai%2Fcreative-upscaler

kind inputactivity imagehash 23583f3aextracted Jul 6, 2026version currentsource upstream spec ↗

Request body

19 properties · 1 required · 0 $defs
propertytypedescriptionconstraints
image_url*stringThe image to upscale.
additional_lora_scalenumberThe scale of the additional LORA model to use for the upscaling. Default is 1.0default: 1
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: "blurry, low resolution, bad, ug…
creativitynumberHow much the output can deviate from the original0 ≤ n ≤ 1 · default: 0.5
additional_lora_urlstringThe URL to the additional LORA model to use for the upscaling. Default is None
seedinteger The same seed and the same prompt given to the same version of Stable Diffusion will output the same image every time. nullable
additional_embedding_urlstringThe URL to the additional embeddings to use for the upscaling. Default is None
scalenumberThe scale of the output image. The higher the scale, the bigger the output image will be.1 ≤ n ≤ 5 · default: 2
promptstringThe prompt to use for generating the image. Be as descriptive as possible for best results. If no prompt is provide BLIP2 will be used to generate a prompt.nullable
detailnumberHow much detail to add0 ≤ n ≤ 5 · default: 1
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 ≤ 16 · default: 7.5
prompt_suffixstringThe suffix to add to the prompt. This is useful to add a common ending to all prompts such as 'high quality' etc or embedding tokens.default: " high quality, highly detailed,…
skip_ccsrbooleanIf set to true, the image will not be processed by the CCSR model before being processed by the creativity model.default: false
override_size_limitsbooleanAllow for large uploads that could take a very long time.default: false
shape_preservationnumberHow much to preserve the shape of the original image0 ≤ n ≤ 3 · default: 0.25
enable_safety_checksbooleanIf set to true, the resulting image will be checked whether it includes any potentially unsafe content. If it does, it will be replaced with a black image.default: true
model_typeenumThe type of model to use for the upscaling. Default is SD_1_5SD_1_5 | SDXL · default: "SD_1_5"
base_model_urlstringThe URL to the base model to use for the upscalingnullable
num_inference_stepsintegerThe number of inference steps to use for generating the image. The more steps the better the image will be but it will also take longer to generate.1 ≤ n ≤ 200 · default: 20

Validate a payload

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