{
  "model": "gpt-image-2.5-sunburst",
  "prompt": "保留图一产品外观，使用图二的配色，制作干净的竖版海报。",
  "images": [
    {
      "image_url": "https://media.example.com/product.png"
    },
    {
      "image_url": "https://media.example.com/colors.png"
    }
  ],
  "size": "1024x1536",
  "quality": "high",
  "n": 1
}