Bria Expand (FIBO-Edit-1.5)

curl -X POST https://superpowers.tools/v1/run \
  -H 'Authorization: Bearer $SP_KEY' \
  -d '{"tool":"fal.bria-fibo-edit-1.5-expand","input":{"image_url":""},"idempotency_key":"example-request-1"}'

{
  "type": "object",
  "required": [
    "image_url"
  ],
  "properties": {
    "canvas_size": {
      "type": "array",
      "description": "The desired size of the final image after the expansion, as [width, height]. Area must be under 25 megapixels. Pairs with 'original_image_location'."
    },
    "aspect_ratio": {
      "type": "string",
      "description": "The desired aspect ratio of the final image. Used over 'original_image_size' and 'original_image_location' if provided: the original is centred and the canvas grows around it.",
      "enum": [
        "1:1",
        "2:3",
        "3:2",
        "3:4",
        "4:3",
        "4:5",
        "5:4",
        "9:16",
        "16:9"
      ]
    },
    "image_url": {
      "type": "string",
      "description": "The image to expand (file or URL)."
    },
    "retain_original_quality": {
      "type": "boolean",
      "description": "Keep the original's own pixels at full resolution. Generation happens near one megapixel, so a larger canvas is scaled up afterwards; leave this on and the region the mask protected is not resampled at all. Turn it off for a uniformly soft result, which can hide the seam on a textured background.",
      "default": true
    },
    "preserve_alpha": {
      "type": "boolean",
      "description": "Keep the input's transparency. The model works in RGB, so the alpha channel is not generated -- the original's own is extended outwards by replicating its edges, which is what expanding a cutout means. Turn it off to get a flattened RGB result.",
      "default": true
    },
    "return_model_output": {
      "type": "boolean",
      "description": "Also return the model's own frame, before the original was pasted back and the seam blended. Diagnostic only -- it does not change the returned image. Use it to tell a bad generation apart from a bad composite: a boundary already broken in that frame came from the model, not from post-processing.",
      "default": false
    },
    "sync_mode": {
      "type": "boolean",
      "description": "If true, returns the image directly in the response (increases latency).",
      "default": false
    },
    "seed": {
      "type": "integer",
      "description": "Reuse the seed from a previous response to recreate that result. Omit it for a random one, which is reported in the response either way."
    },
    "original_image_location": {
      "type": "array",
      "description": "Top-left corner of the original within the canvas, as [x, y]. May sit outside the canvas, in which case the original is cropped. Ignored if 'aspect_ratio' is provided."
    },
    "original_image_size": {
      "type": "array",
      "description": "The desired size of the original inside the canvas, as [width, height]; it is resized to this before being placed. Ignored if 'aspect_ratio' is provided."
    },
    "negative_prompt": {
      "type": "string",
      "description": "Not supported by this model, and refused rather than ignored -- see 'prompt'. Present only so a request written against the SDXL expansion endpoint fails loudly here instead of silently losing the field."
    },
    "prompt": {
      "type": "string",
      "description": "What should appear in the expanded area. Omit it and the model is asked only to extend the image, which is usually what you want for a plain canvas change."
    }
  }
}