DeepSeek, Qwen and GLM are the cheapest frontier models available — but buying them directly means Alipay or WeChat Pay, which need a Chinese bank account or ID-verified wallet. We remove that wall: pay with a normal card or USDT, get one OpenAI-compatible key, start in minutes. No Chinese phone number, no KYC wall, no PayPal roulette.
from openai import OpenAI
client = OpenAI(
base_url="https://vantixcloud.com/v1",
api_key="vx-your-key-here",
)
resp = client.chat.completions.create(
model="deepseek-v4-flash",
messages=[{"role": "user", "content": "你好"}],
)
print(resp.choices[0].message.content)
USD per 1M tokens · billed per token, no minimum, no monthly fee.
| Model | Provider | Input | Output | Best for |
|---|---|---|---|---|
| deepseek-v4-pro | DeepSeek | $0.566 | $1.131 | 旗艦推理,複雜任務 |
| deepseek-v4-flash | DeepSeek | $0.182 | $0.364 | 高性價比,量大首選 |
| deepseek-v3.2 | DeepSeek | $0.182 | $0.364 | 穩定通用 |
| qwen3.8-max | 阿里 Qwen | $1.560 | $7.800 | 最強中文理解 |
| qwen3.7-max | 阿里 Qwen | $1.560 | $7.800 | 中文旗艦 |
| qwen3.7-plus | 阿里 Qwen | $0.520 | $1.560 | 均衡快速 |
| glm-5.2 | 智譜 GLM | $0.780 | $2.600 | 長文本擅長 |
No — that is the point. Top up with USDT (TRC20) or a regular card through our processor, and call DeepSeek, Qwen or GLM immediately.
Do you offer Claude, GPT or Gemini?Not currently. We focus on China's top models — DeepSeek, Qwen and GLM — which cost a fraction of Western models and are excellent at Chinese and general tasks. If you specifically need Claude or GPT, contact us and we'll advise.
Is it really OpenAI-compatible?Yes. Set base_url to https://vantixcloud.com/v1 and use your vx- key. Existing OpenAI SDK code, LangChain and most tools work unchanged.
How is billing calculated?Per token at the rates above. Every response returns your exact cost and remaining balance in X-Vantix-Cost-USD and X-Vantix-Balance-USD headers. No subscription, no minimum.
Is there a free trial?Yes — every new key comes with free trial credit so you can verify it works before paying.