Why Vietnamese Developers Should Switch to Chinese AI Models in 2026
June 8, 2026 · 4 min read
The Price Gap Is Now Ridiculous
Let's compare real numbers. For 1 million input tokens:
That's 89% cheaper for input and 94% cheaper for output. If your startup spends $500/month on GPT-4o, switching to DeepSeek V4 Pro brings that down to roughly $50/month. Same quality. Same API format.
"But I Can't Access DeepSeek from Vietnam"
This was the blocker. DeepSeek blocks IPs from Vietnam and most of Southeast Asia. You needed a VPN, and then you still couldn't pay because DeepSeek only accepts Alipay and WeChat Pay.
NexAPI solves both problems:
- Servers in Singapore — no VPN needed, ping under 50ms from Vietnam
- Payment by international card — Visa, Mastercard all accepted
- MoMo coming soon for truly local payment
Migration Takes 30 Seconds
If you're already using the OpenAI SDK, here's the entire migration:
const client = new OpenAI({ apiKey: '...' });
// After (NexAPI + DeepSeek)
const client = new OpenAI({
baseURL: 'https://nex-api.tech/v1',
apiKey: 'napi-xxx'
});
That's it. One line changed. Your existing code, prompts, function calls, streaming — everything works exactly the same.
Quality: GPT-4o Level, Verified
DeepSeek V4 Pro scores within 2% of GPT-4o on MMLU, HumanEval, and MATH benchmarks. For coding tasks — the main use case for most developers — it performs identically in real-world tests. You won't notice a difference.
Bottom Line
There's no reason to keep paying OpenAI prices from Vietnam. The quality is there, the API is compatible, and the price is 1/10. Sign up at nex-api.tech, get your API key in 30 seconds, and save 90% on your AI bill today.