图像生成 (OpenAI 风格)

curl -X POST "$BASE_URL/v1/images/generations" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-3-pro-image-preview",
    "prompt": "一只熊猫在图书馆看书，电影级光影",
    "n": 1,
    "size": "1K",
    "aspect_ratio": "1:1",
    "response_format": "b64_json"
  }'

// 方式 1：只通过 size（数字）推断
{"size": "1024x1024"}  // 自动推断为 1K + 1:1

// 方式 2：推荐写法——档位 + 显式指定 aspect_ratio（优先级更高）
{"size": "2K", "aspect_ratio": "16:9"}

{
  "created": 1700000000,
  "data": [
    {
      "b64_json": "<BASE64_IMAGE_DATA>",
      "revised_prompt": "优化后的提示词（如有）"
    }
  ]
}

from openai import OpenAI

client = OpenAI(
    base_url="https://models.kapon.cloud/v1",
    api_key="oh-xxxxxxxxxxxxxxxx",
)

resp = client.images.generate(
    model="gemini-3-pro-image-preview",
    prompt="赛博朋克风格的未来城市，霓虹灯倒映在雨水中",
    size="2048x2048",
    response_format="b64_json",
)

# 获取 base64 图片数据
image_b64 = resp.data[0].b64_json

curl -X POST "$BASE_URL/v1/images/edits" \
  -H "Authorization: Bearer $TOKEN" \
  -F "model=gemini-3-pro-image-preview" \
  -F "prompt=将这张图片转换为油画风格" \
  -F "response_format=b64_json" \
  -F "image=@/path/to/image.png"

curl -X POST "$BASE_URL/v1/images/edits" \
  -H "Authorization: Bearer $TOKEN" \
  -F "model=gemini-3-pro-image-preview" \
  -F "prompt=保持第一张图的构图，参考第二张的色调" \
  -F "response_format=b64_json" \
  -F "size=2048x2048" \
  -F "image=@/path/base.png" \
  -F "image[]=@/path/ref1.png" \
  -F "image[]=@/path/ref2.png"

输入：50 tokens × 输入价格
输出：1 张 × 1290 tokens × 输出价格