Moonshot AI
Kimi K3 paper author, 17, leaves Moonshot AI
Chen Guangyu, a lead author of the "Attention Residuals" paper, says he is moving to the San Francisco Bay Area and has turned down Anthropic.
The answer
Chen Guangyu, 17, lead author of the Kimi K3 paper, confirmed he left Moonshot AI.
What happened: Chen Guangyu, 17, confirmed on 18 October that he has left Moonshot AI, according to Seoul Economic Daily.
The numbers: Chen is one of three equal-contribution first authors of "Attention Residuals". That is the paper behind Moonshot's Kimi K3.
Why it matters: One of the three lead authors of the Kimi K3 research is no longer at the company.
The details: Chen is relocating to the San Francisco Bay Area.
In their words: Chen addressed talk of a move to Anthropic. He said joining Anthropic "is not happening."
The catch: Where Chen will work next is unconfirmed. The report does not say what he plans to do in the Bay Area.
The context: The details here come from a secondary summary of the Seoul Economic Daily report, not the full article.
What's next: Chen's next role has not been announced.
Sources
- Teen prodigy behind Kimi breakthrough leaves Moonshot AI — Seoul Economic Daily, 18 October 2026