import openai
client = openai.AzureOpenAI(
api_key=YOUR_API_KEY,
base_url='https://nexus-api.top/v1'
)
response = client.chat.completions.create(
model='deepseek-v4-flash',
messages=[{'role':'user','content':'Hello'}]
)一行代码即可切换模型,支持流式输出和工具调用。