{
  "model": "grok-imagine-video-1.5",
  "prompt": "Original small teal delivery robot carrying one coral parcel across a warm cream studio desk. One gentle tracking move, coherent wheels and parcel shape, soft daylight and no text or logos. No dialogue. Inspect the full returned video and any audio before accepting.",
  "duration": 10,
  "aspect_ratio": "16:9",
  "resolution": "720p"
}