Nano Banana 图片生成（OpenAI 聊天格式）

使用 OpenAI Chat Completions 兼容格式调用 gemini-2.5-flash-image（Nano Banana）。项目会转换为 Gemini 请求；直接传 model、messages、stream 即可。extra_body.google.image_config 仅在需要指定图片比例或尺寸时使用，字段必须使用 snake_case。

Authorization

Bearer

AuthorizationBearer <token>

In: header

Request Body

application/json

model*string

模型名称。

Value in"gemini-2.5-flash-image"

messages*

OpenAI 聊天消息。图片会以 Markdown data URI 形式返回到 message.content 中。

stream?boolean

是否流式返回。

extra_body?

Response Body

application/json

curl -X POST "https://nodekey.xinghanyun.cn/v1/chat/completions" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-2.5-flash-image",
    "messages": [
      {
        "role": "user",
        "content": "画一只戴着贝雷帽的小猫，白色背景，插画风格"
      }
    ],
    "stream": false,
    "extra_body": {
      "google": {
        "image_config": {
          "image_size": "https://example.com/image.jpg"
        },
        "thinking_config": {
          "include_thoughts": false,
          "thinking_budget": 1
        }
      }
    }
  }'

curl -X POST "https://nodekey.xinghanyun.cn/v1/chat/completions" \  -H "Content-Type: application/json" \  -d '{    "model": "gemini-2.5-flash-image",    "messages": [      {        "role": "user",        "content": "画一只戴着贝雷帽的小猫，白色背景，插画风格"      }    ],    "stream": false,    "extra_body": {      "google": {        "image_config": {          "image_size": "https://example.com/image.jpg"        },        "thinking_config": {          "include_thoughts": false,          "thinking_budget": 1        }      }    }  }'

{
  "id": "string",
  "object": "string",
  "created": 0,
  "model": "string",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "string",
        "content": "string"
      },
      "finish_reason": "string"
    }
  ],
  "usage": {
    "prompt_tokens": 0,
    "completion_tokens": 0,
    "total_tokens": 0
  }
}

Nano Banana 图片生成（OpenAI 聊天格式）

Authorization

Request Body

Response Body

200application/json

application/json