Weijin Research
Weijin ResearchUnderstanding China’s technology and energy transformation through industrial logic.
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 15 | Subscribers | Read | weijinresearch.substack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
AI agents take on the biz planning
Originally published on WeChat as “智能体时代的token经济学，如何终结人类原生的商业模式” on April 28, 2026
DeepSeek-V4: A Need for Reassessment
The long-awaited release of DeepSeek-V4 on April 24 did not faze Wall Street one jot. Nvidia’s stock rose more than 4% that same day, pushing its market capitalization firmly above $5 trillion. Just 15 months earlier, the release of DeepSee...
Open-source AI Models May Slip Down the Rankings
Nathan Lambert has spent the past year tracking the actual performance of open source AI models. His conclusion that Chinese open models have overtaken US counterparts fed into a broader narrative of technological realignment. Continuing wi...
MiniMax and Z.ai Battle It Out in the Aftermath of the Claude Code Leak
Claude Code’s 1,906 leaked files and 512,000 lines of code sent Zhipu shares shooting up 32% (market cap ~$52 billion) and MiniMax 14% (~$42 billion) in a single session. The market thought China had just got the blueprint for Anthropic-sty...
Authors
The writers behind this newsletter.
I research and write on emerging and scaling up technologies in China. I founded Weijin Research and was a business and tech journalist.
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