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Gemini Image 图像生成 ​

Gemini 系列图像模型,支持文生图以及基于对话的改图。

方式一:OpenAI 兼容格式(推荐) ​

端点 ​

POST $URL/v1/images/generations

支持模型 ​

模型定位
gemini-3-pro-image高质量文生图
gemini-3-pro-image-preview预览版
gemini-2.5-flash-image轻量快速
gemini-3.1-flash-image新版轻量

请求示例 ​

bash
curl $URL/v1/images/generations \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-3-pro-image",
    "prompt": "一只戴着墨镜的猫走在霓虹灯街道上,赛博朋克风格",
    "n": 1,
    "size": "1024x1024"
  }'

方式二:Gemini 原生格式 ​

如需使用 Gemini 原生图像生成端点:

POST $URL/v1/models/{model}:generateContent

请求体示例 ​

json
{
  "contents": [
    {
      "role": "user",
      "parts": [
        { "text": "Generate an image of a cat wearing sunglasses in a cyberpunk city." }
      ]
    }
  ],
  "generationConfig": {
    "responseModalities": ["TEXT", "IMAGE"]
  }
}

cURL 示例 ​

bash
curl $URL/v1/models/gemini-3-pro-image:generateContent \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [
      {
        "role": "user",
        "parts": [{"text": "Generate an image of a cat wearing sunglasses."}]
      }
    ],
    "generationConfig": {
      "responseModalities": ["TEXT", "IMAGE"]
    }
  }'

说明 ​

  • Gemini Image 支持多轮对话式改图,适合需要反复精修的场景。
  • 推荐优先使用 OpenAI 兼容格式接入,降低迁移成本。

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