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POST
https://console.mixroute.io
/
v1
/
images
/
generations
curl --request POST \
  --url https://console.mixroute.io/v1/images/generations \
  --header 'Authorization: Bearer sk-xxxxxxxxxx' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "gemini-2.5-flash-image",
    "prompt": "一只可爱的橙色小猫坐在花园里",
    "size": "16:9",
    "quality": "high",
    "n": 1,
    "response_format": "b64_json",
    "image_size": "2K"
  }'

{
  "created": 1709459123,
  "data": [
    {
      "b64_json": "iVBORw0KGgoAAAANSUhEUgAA..."
    }
  ]
}

​
简介

Nano Banana 对应 Google Gemini 图像生成模型，包括 Nano Banana（gemini-2.5-flash-image）与 Nano Banana Pro（gemini-3-pro-image-preview）。通过统一的图片生成接口 POST /v1/images/generations 调用，支持文生图、图生图及多图融合等能力。 完整参数与多模型说明请参见 图片生成。

​
认证

Bearer Token，如 Bearer sk-xxxxxxxxxx

​
支持的模型

模型 ID说明
gemini-2.5-flash-imageNano Banana，高性价比文生图/图生图
gemini-3-pro-image-previewNano Banana Pro，更高画质与可控性

​
请求示例

curl -X POST "https://console.mixroute.io/v1/images/generations" \
  -H "Authorization: Bearer sk-xxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-2.5-flash-image",
    "prompt": "一只可爱的橙色小猫坐在花园里，阳光明媚，高质量摄影",
    "size": "16:9",
    "quality": "high",
    "n": 1,
    "response_format": "b64_json",
    "image_size": "2K",
    "mime_type": "image/png",
    "response_modalities": "image"
  }'

​
常用参数

  • prompt：文生图提示词
  • size：宽高比，如 16:9、1:1
  • quality：质量档位，如 high
  • image_size：输出尺寸档位，如 1K、2K、3K
  • response_format：Gemini 系列仅支持 b64_json，返回 base64 图片
  • contents：图生图或多轮对话时使用，格式见 图片生成
更多参数与各模型差异请参见 图片生成。 
curl --request POST \
  --url https://console.mixroute.io/v1/images/generations \
  --header 'Authorization: Bearer sk-xxxxxxxxxx' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "gemini-2.5-flash-image",
    "prompt": "一只可爱的橙色小猫坐在花园里",
    "size": "16:9",
    "quality": "high",
    "n": 1,
    "response_format": "b64_json",
    "image_size": "2K"
  }'

{
  "created": 1709459123,
  "data": [
    {
      "b64_json": "iVBORw0KGgoAAAANSUhEUgAA..."
    }
  ]
}