Gemini 3 Pro Preview 正式发布：LMArena 全球第一

import openai

client = openai.OpenAI(
    api_key="your-api-key",
    base_url="https://api.openai-hub.com/v1"
)

# 基础对话
response = client.chat.completions.create(
    model="gemini-3-pro-preview",
    messages=[
        {"role": "user", "content": "解释一下量子纠缠的原理"}
    ]
)
print(response.choices[0].message.content)

# 思维链模式
response = client.chat.completions.create(
    model="gemini-3-pro-preview-thinking",
    messages=[
        {"role": "user", "content": "证明：对于任意正整数 n，1+2+3+...+n = n(n+1)/2"}
    ]
)
print(response.choices[0].message.content)

# 图像理解
response = client.chat.completions.create(
    model="gemini-3-pro-preview",
    messages=[
        {
            "role": "user",
            "content": [
                {"type": "text", "text": "这张图片中有什么？"},
                {
                    "type": "image_url",
                    "image_url": {"url": "https://example.com/image.jpg"}
                }
            ]
        }
    ]
)

# 函数调用示例
tools = [
    {
        "type": "function",
        "function": {
            "name": "get_weather",
            "description": "获取指定城市的天气信息",
            "parameters": {
                "type": "object",
                "properties": {
                    "city": {"type": "string", "description": "城市名称"}
                },
                "required": ["city"]
            }
        }
    }
]

response = client.chat.completions.create(
    model="gemini-3-pro-preview",
    messages=[{"role": "user", "content": "北京今天天气怎么样？"}],
    tools=tools
)