DeepSeek · Qwen · GLM · and more — all in one API
China's best AI models.
For the world.
One OpenAI-compatible endpoint. Pay with Stripe. No Chinese phone number, no VPN, no friction. Just powerful, affordable models ready to use.
quickstart.py
from openai import OpenAI
client = OpenAI(
api_key="zyn-your-key-here",
base_url="https://api.zynthii.com/v1",
)
response = client.chat.completions.create(
model="deepseek-ai/DeepSeek-V3",
messages=[{"role": "user", "content": "Hello!"}],
)Why Zynthii AI
⚡
OpenAI-Compatible API
Drop-in replacement. Change one line of code, access China's best models instantly.
🔑
No Chinese Account Needed
Sign up with email. Pay with credit card. Start calling APIs in under 2 minutes.
🔁
Auto Failover & Key Pooling
We rotate upstream keys automatically. No more 429 errors killing your production app.
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Up to 10x Cheaper
Access frontier-level models at a fraction of OpenAI pricing. Same performance, less spend.
Pricing
Pay per token. No subscriptions.
Prices in USD per 1M tokens. Billed from your credit balance.
| Model | Type | Input / 1M | Output / 1M |
|---|---|---|---|
DeepSeek-V3Popular | Chat | $0.27 | $1.10 |
DeepSeek-R1Popular | Reasoning | $0.55 | $2.19 |
Qwen3-235B-A22B | Chat | $0.21 | $0.21 |
Qwen2.5-72B-Instruct | Chat | $0.35 | $0.35 |
GLM-4-32B | Chat | $0.14 | $0.14 |
DeepSeek-R1-Distill-Qwen-32B | Reasoning | $0.14 | $0.28 |
Full model catalog available after signup. Prices include our service fee. All major models from SiliconFlow supported.