Flux Kontext Fast

Run it

The smallest request that works: the required fields only.

curl https://api.percify.io/v3/playground/v1/run \
  -H "Authorization: Bearer $PERCIFY_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "modelId": "flux-kontext-fast",
    "input": {
      "prompt": "Replace “schnell” by “Kontext” and make the prune blue",
      "img_cond_path": "https://example.com/input.png"
    }
  }'

1. EstimatePOST /estimate with the same body returns the price and charges nothing.
2. RunPOST /run returns an id at once, with status processing.
3. CollectGET /generations/{id}?wait=55 returns the file URLs, or pass a webhook.

Parameters

10 fields in input, required first.

• promptRequired
  string

  Prompt

• img_cond_pathRequired
  URL

  Input image for image to image mode. The aspect ratio of your output will match this image

• speed_modeOptional
  Lightly Juiced 🍊 (more consistent), Juiced 🔥 (default), Extra Juiced 🔥 (more speed), Blink of an eye 👁️, Real TimeDefault Extra Juiced 🔥 (more speed)

  Speed optimization level

• num_inference_stepsOptional
  integerDefault 30

  Number of inference steps

• guidanceOptional
  numberDefault 3.5

  Guidance scale

• seedOptional
  integer

  Random seed for reproducible generation. Leave blank for random.

• aspect_ratioOptional
  match_input_image, 1:1, 16:9, 21:9, 3:2, 2:3, 4:5, 5:4, 3:4, 4:3, 9:16, 9:21Default match_input_image

  Aspect ratio of the output image

• image_sizeOptional
  integerDefault 1024

  Base image size (longest side)

• output_formatOptional
  png, jpg, webpDefault jpg

  Output format

• output_qualityOptional
  integerDefault 80

  Output quality (for jpg and webp)