falImage to imageComing soon

fal-ai/flux-lora-fill

Name: fal-ai/flux-lora-fill
Brand: fal

fal-ai/flux-lora-fill is an image to image tool from fal that runs in the background and returns images. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Priced by usage

Pricing

$0.0455 per megapixel. Each image_size preset counts as 1 MP, and a custom width × height rounds up to whole megapixels. Billed on num_images, default 1. The final charge comes from usage.

Limits

Runs: In the background
Returns: image
Longest queue wait: 3600s
Run deadline: 1800s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`prompt`	text		The prompt to generate an image from.
`image_size`	JSON	—	The size of the generated image.
`num_inference_steps`	number (whole) 1 to 50	28	The number of inference steps to perform.
`seed`	number (whole)	—	The same seed and the same prompt given to the same version of the model will output the same image every time.
`loras`	JSON	[]	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.
`guidance_scale`	number 28 to 35	30	The 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.
`num_images`	number (whole) 1 to 4	1	The number of images to generate. This is always set to 1 for streaming output.
`output_format`	one of jpeg, png	jpeg	The format of the generated image.
`acceleration`	one of none, regular	none	Acceleration level for image generation. 'regular' balances speed and quality.
`image_url` required	URL or file	—	URL of image to use for fill operation
`mask_url` required	URL or file	—	The mask to area to Inpaint in.
`paste_back`	true or false	true	Specifies whether to paste-back the original image onto to the non-inpainted areas of the output
`fill_image`	JSON	—	Use an image fill input to fill in particular images into the masked area.
`resize_to_original`	true or false	false	Resizes the image back to the original size. Use when you wish to preserve the exact image size as the originally provided image.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "fal",
    "model": "fal-ai/flux-lora-fill",
    "input": {
      "image_url": "https://storage.googleapis.com/falserverless/flux-lora/example-images/knight.jpeg",
      "mask_url": "https://storage.googleapis.com/falserverless/flux-lora/example-images/mask_knight.jpeg"
    }
  }'