CAPTCHA grid with uncommon object

{
  "censor_nsfw": true,
  "models": [
    "SDXL_beta::stability.ai#6901"
  ],
  "nsfw": false,
  "params": {
    "height": 1024,
    "hires_fix": false,
    "n": 2,
    "sampler_name": "k_euler_a",
    "width": 1024
  },
  "prompt": "An example image for the new CAPTCHA system showing a grid of squares, some containing an uncommon object while others are empty, high quality, detailed, visually engaging, colorful",
  "slow_workers": true
}