{
  "catalog_version": "2026-09-26.1",
  "updated": "2026-09-26",
  "base_url": "https://dashboard.alphanetplus.com",
  "aspects": [
    {
      "value": "1:1",
      "size": "1024 × 1024"
    },
    {
      "value": "3:4",
      "size": "768 × 1024"
    },
    {
      "value": "4:3",
      "size": "1024 × 768"
    },
    {
      "value": "2:3",
      "size": "768 × 1152"
    },
    {
      "value": "3:2",
      "size": "1152 × 768"
    },
    {
      "value": "16:9",
      "size": "1344 × 768"
    },
    {
      "value": "9:16",
      "size": "768 × 1344"
    }
  ],
  "flow": [
    {
      "step": 1,
      "method": "POST",
      "path": "/v1/flux/uploads",
      "title": "Open an upload ticket",
      "detail": "One ticket per reference image. The response carries the URL to PUT the bytes to, the file id you submit, and the byte ceiling."
    },
    {
      "step": 2,
      "method": "PUT",
      "path": "{upload_url}",
      "title": "Upload the bytes",
      "detail": "Send the file itself to the signed URL, with the headers from the ticket. Nothing else goes through our API: the bytes go straight to storage."
    },
    {
      "step": 3,
      "method": "POST",
      "path": "/v1/tasks/alphanet-flux",
      "title": "Submit the task",
      "detail": "The model id and the file ids in order. Always send an Idempotency-Key: the same key and body return the same task, a different body under the same key is refused with 409."
    },
    {
      "step": 4,
      "method": "GET",
      "path": "/v1/tasks/{task_id}",
      "title": "Poll, then fetch the result",
      "detail": "Poll until the status is terminal, then read /v1/tasks/{task_id}/result for the signed URLs and the sha256 of each artifact."
    }
  ],
  "model": {
    "id": "cutout-fast",
    "label": "Background removal",
    "summary": "Cuts the subject out and answers a PNG with an alpha channel at the input size.",
    "capability": "tool_cutout",
    "inputs": {
      "min": 1,
      "max": 1,
      "slots": [
        "the photo"
      ]
    },
    "params": [
      {
        "name": "bg_color",
        "type": "string",
        "note": "Fill the removed background with a colour instead of leaving it transparent."
      },
      {
        "name": "bg_model",
        "type": "string",
        "note": "Which matting model the service picks (isnet, birefnet or u2net family)."
      },
      {
        "name": "alpha_matting",
        "type": "string",
        "note": "Softer edges on hair and fur, at a little more time."
      }
    ],
    "refuses": [
      "width",
      "height",
      "max_sequence_length",
      "output_format",
      "output_quality"
    ],
    "output": "PNG with transparency, at the input size — 768 × 1024 in, 768 × 1024 out.",
    "latency": "~5 s end to end, 0.8 s of it inference (measured 2026-09-26)",
    "limits": [
      "Fine hair, glass and motion blur keep some background; a see-through subject cannot be cut cleanly.",
      "The cut is the whole frame. There is no per-object selection: one subject per call."
    ],
    "submit_body_example": {
      "model": "cutout-fast",
      "image_ids": [
        "<file_id>"
      ]
    },
    "price": "$0.01 per call",
    "try_it": "/remove-background",
    "cases": [
      "cutout-teapot"
    ],
    "verified": "2026-09-26 (public gateway)"
  }
}