Hello,
this is Koji.

Aloha! I'm Koji Yang — from Chongqing, based in Shanghai.
Builder and Adventurer.

I've been closely following the AI startup world for years. If you're building something that excites you — even if it's just an idea — I'd love to hear about it. I read every message.

The coolest people I know found me through my work — my writing, my podcast, the companies I've built and the products they created. So let me introduce them first:

Creation

🚥I founded Crossing (十字路口)

I believe AI is the greatest value-creation opportunity of our generation. Its transformative potential will give rise to many billion-dollar companies — each perhaps needing only 10 to 20 people.

So I founded Crossing — a podcast and newsletter about AI. We seek out, interview, and connect the next generation of AI founders — exploring and embracing new possibilities together.

AI Founders Meetup is an online gathering hosted by Crossing for AI founders — a space to find like-minded builders and navigate the challenges and opportunities of the AI era together.

Community

🎪I started AI Hacker House

AI Hacker House is a 300㎡ standalone building by a lake, surrounded by water and trees in Shanghai's Caohejing district. After visiting AGI House and HF0 in Silicon Valley, we set out to create China's own AI innovation hub.

AI Hacker House — exterior
AI Hacker House — lake view
Investment

🎪Venture Partner at Zhen Fund

Finding and backing the most promising founders of the next generation.

Advisory

🥷Advisor to two AI companies

Monica & Manusbacked by Benchmark, Zhen Fund, etc.
Nexadbacked by a16z, Prosus, Point 72, etc.
Ventures

I co-founded three companies

2010
「Jiepang」

Founded while studying at Beihang University. One of China's earliest LBS social apps.

2015

A content company. "We will change the tide."

2020

A sleep environment brand. "Come to TangDao — a good sleep fixes everything."

From internet to e-commerce, from content marketing to consumer brands — I've always let curiosity lead the way. I've been lucky enough to produce work I'm proud of across many different fields.

As Sam Altman once said: I think I'm not excellent at any one thing, but pretty good at a lot of things. And I think breadth has become undervalued in the world — everyone has become highly specialized. So if you're pretty good at many things, you can find connections between them and come up with ideas that are genuinely different.

Experience

💼I worked at two companies

Fanfou
The only product manager on Wang Xing's early team
Jumei
GM of Mobile Division — IPO on NYSE within four years
Birding

🐦Birdwatching

I started birdwatching in 2023. It brings me immense joy and stillness.

My goal for 2026: observe more than 200 species.

→ My eBird profile
a perched bird — naturalist illustration
Reading

📚Books

Since 2006, every book I've read has been logged on my Douban reading page.

Connect

👬Super Connector

I love being called a Super Connector by my friends. I'm always happy to help creators and founders. Feel free to reach out:

💬WeChatYuanchengYang
𝕏X / Twitter@Yuancheng
💼LinkedInKoji Yang
Projects

🛠️Things I've recently built

🐦
A Bird a Daybird.kojiyang.me
One bird a day — my personal field notes, capturing the moment of each encounter.
🚥
Crossing Globalcrossingpodcast.com
The English-language home of Crossing — bringing China's AI startup scene to a global audience.
📺
Crossing TVcrossingtv.kojiyang.me
A dedicated TV set for Crossing — open it and the latest episode plays right away.
Quotes

🦚A few lines I keep coming back to

Criticizing always looks smart, just as building always looks clumsy.

Good things happen as long as you keep building.

The era rewards those willing to take the first step into the fog.

Inspiration

❤️Sources of inspiration

I draw inspiration from things I love, and actively try to build products as wonderful as they are. Here are the companies, products, and people that have inspired me most lately:

NotionArcThe Browser Company恰恰小报哆啦A梦CanvaCursorMonicaManusNaval
EMOJI

😄My favourite emojis

🎄Xmas Tree
💚Green Heart
🎪Circus
😲Astonishment
Koji2026
a little bird— fin —