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jianjun Liu
jianjun Liu

Posted on • Originally published at tokenease.io

Open-Source LLMs Are Eating Silicon Valley: 6 Models Cheaper Than GPT-5

Open-Source LLMs Are Eating Silicon Valley

In the last 6 months, Chinese open-source LLMs went from "interesting" to "industry standard." Here's the data.

The 6 Models You Should Know

Model Company Params Context Input/M Output/M
Kimi K3 Moonshot 2.8T (MoE) 256K $0.50 $2.00
DeepSeek V4 DeepSeek 1.3T 128K $0.27 $1.10
GLM-5.1 Zhipu 720B 128K $0.30 $1.20
Qwen-Plus Alibaba 720B 128K $0.40 $1.30
Doubao Pro ByteDance 256B 128K $0.20 $0.80
Kimi K2.6 Moonshot 1T 128K $2.00 $8.00

GPT-5 for reference: $10/M input, $30/M output.

Real Adoption Story

Last week, I helped 3 US startups switch from GPT-5 to Chinese open-source models. Combined monthly savings: $48,000. Same quality, 1/20 the cost.

Why Now?

  1. MoE architecture — activate only 5-15% of params per token, slashing compute costs
  2. Chinese infra — electricity + GPUs cheaper in CN
  3. Open weights — no API lock-in
  4. Rapid iteration — DeepSeek V3 → V4 in 90 days
  5. Real benchmarks — beating GPT-5 on MMLU-Pro, HumanEval+, GSM8K

How to Access (No Chinese Phone Needed)

Chinese models normally require:

  • Chinese phone number
  • Alipay or WeChat Pay
  • Business license (sometimes)

TokenEase (https://tokenease.io) solves this. One API key, 6 models, no China auth.

curl -X POST https://api.tokenease.ai/v1/chat/completions \
  -H "Authorization: Bearer $TK_KEY" \
  -d '{"model":"kimi-k3","messages":[{"role":"user","content":"hi"}]}'
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Migration Checklist

Switching from GPT-5 to K3:

  • [ ] Change base_url to TokenEase
  • [ ] Replace gpt-5 with kimi-k3 in model name
  • [ ] Set temperature=1 (K3 requirement)
  • [ ] Test on your 20 most common prompts
  • [ ] Compare quality (use your own eval)
  • [ ] Switch 10% → 50% → 100% of traffic
  • [ ] Save $$$$

What This Means for Developers

If you're paying for GPT-5 today and not exploring K3/DeepSeek/GLM, you're overpaying by 10-20x.

The era of "GPT-5 is the only good model" is over.

Try It Risk-Free

TokenEase gives you $1 free credit (2M tokens) to test all 6 models:
https://tokenease.io/register

What's your experience with Chinese open-source LLMs? Comments welcome 👇

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