DeepSeek V3 开源 中国AI 2025.12

from openai import OpenAI

client = OpenAI(
    api_key="your_deepseek_api_key",
    base_url="https://api.deepseek.com"
)

response = client.chat.completions.create(
    model="deepseek-chat",  # 或 deepseek-reasoner
    messages=[
        {"role": "system", "content": "你是一个专业的编程助手"},
        {"role": "user", "content": "用 Python 实现快速排序算法"}
    ],
    temperature=0.7,
    stream=True
)

for chunk in response:
    print(chunk.choices[0].delta.content, end="")