数字先锋API文档

# Gemini 绘画生成格式

Gemini 图像模型，且统一走 /v1/images/generations 
Gemini 绘画模型包括gemini-3-pro-image-preview、nano-banana-2-2k、nano-banana-2、gemini-2.5-flash-image

文生图像生成示例
```bash
# Gemini 图片生成（OpenAI 兼容：/v1/images/generations）
curl --request POST "https://api.cxsee.com/v1/images/generations" \
  --header "Authorization: Bearer $API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "nano-banana",
    "messages": [
      {
        "role": "user",
        "content": "生成一张未来城市夜景插画，霓虹灯，雨夜倒影，超清细节"
      }
    ],
    "modalities": ["text", "image"]
  }'
```
终端测试使用nano-banana模型示例
![](https://img.cxhao.com/images/5/2026/02/mp2Aa8K889L42Az6l4azlC99agASGK.png)

使用日志
![](https://img.cxhao.com/images/5/2026/02/v1WaP1NuTr1J3bNdnbD4BJIyjlja3W.png)

标准成功返回<JSON>
```bash
{
  "id": "chatcmpl-20260227154808404410823HLwVZkqW",
  "model": "nano-banana",
  "object": "chat.completion",
  "created": 1772178499,
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "生成一张未来城市夜景插画，霓虹灯，雨夜倒影，超清细节\n![image1](https://webstatic.xxx.com/output/20260227/2335/fbb4d198-314a-4b6c-b466-b0e75144dcb5.png) [下载1](https://webstatic.xxx.com/output/20260227/2335/fbb4d198-314a-4b6c-b466-b0e75144dcb5.png)"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 27,
    "completion_tokens": 1290,
    "total_tokens": 1317,
    "input_tokens": 0,
    "output_tokens": 0
  }
}
```
图像生成结果
![](https://img.cxhao.com/images/5/2026/02/lLfLjE325b8G8d4FfG8abreHdfZ2Fs.png)

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