The Unified Interface
For Every Model

from openai import OpenAI

client = OpenAI(
    base_url="https://apivien.com/v1",
    api_key="sk-apivien-xxxxxxxxxxxxxxxxxxxxxxxx"
)

response = client.chat.completions.create(
    model="deepseek/deepseek-r1",
    messages=[
        {"role": "system", "content": "You are a helpful expert."},
        {"role": "user", "content": "Explain quantum computing in 2 sentences."}
    ],
    stream=True
)

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