DeepSeek

DeepSeek V4 API

Official DeepSeek signup often expects a Chinese phone and local payment rails. ChinaSo exposes DeepSeek through https://api.chinaso.org/v1 so you can stay on the OpenAI SDK.

Models

• deepseek-chat — general chat & coding
• deepseek-reasoner — reasoning mode

Example

from openai import OpenAI
client = OpenAI(
    api_key="YOUR_KEY",
    base_url="https://api.chinaso.org/v1",
)
r = client.chat.completions.create(
    model="deepseek-chat",
    messages=[{"role":"user","content":"Hello from overseas"}],
)
print(r.choices[0].message.content)

vs official / OpenRouter

Prefer ChinaSo when production traffic is mostly Chinese models and you want a dedicated gateway. Prefer OpenRouter when you need dozens of non-Chinese models and multi-provider failover.