falImage to imageComing soon

fal-ai/instant-character

fal-ai/instant-character 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

$0.13 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

FieldKindDefaultDescription
prompt requiredtext—The prompt to generate an image from.
image_url requiredURL or file—The image URL to generate an image from. Needs to match the dimensions of the mask.
image_sizeJSONsquare_hdThe size of the generated image.
scalenumber
0 to 2
1The scale of the subject image. Higher values will make the subject image more prominent in the generated image.
negative_prompttext The 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).
seednumber (whole)— The same seed and the same prompt given to the same version of the model will output the same image every time.
guidance_scalenumber
0 to 20
3.5 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_inference_stepsnumber (whole)
1 to 50
28The number of inference steps to perform.
num_imagesnumber (whole)
1 to 4
1The number of images to generate.
output_formatone of
jpeg, png
jpegThe format of the generated 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/instant-character",
    "input": {
      "prompt": "A girl is playing a guitar in street",
      "image_url": "https://storage.googleapis.com/falserverless/example_inputs/girl.jpg"
    }
  }'