ImageGenerationRequest

{
    "model": "gpt-image-2",
    "prompt": "一张现代 API 平台首页插图，白底，青蓝色块，干净留白",
    "n": 1,
    "size": "1536x1024",
    "image": "string",
    "response_format": "url",
    "quality": "auto",
    "style": "string",
    "background": "string",
    "watermark": false
}