Chinese startup Moonshot AI matches US models with Kimi K3
Moonshot AI has released an open-weight AI model that rivals US systems at a lower cost, intensifying the technological contest between Chinese and American developers.
Moonshot AI, a Chinese startup backed by Alibaba and Tencent, has released the Kimi K3 open-weight model. The system matches the coding and agentic capabilities of leading proprietary models from OpenAI and Anthropic, but at a significantly lower operating cost.
The release immediately captured Silicon Valley's attention and marks a new milestone for China in the global AI race. Vercel CEO Guillermo Rauch noted that Kimi K3 is "the first time that an open model is ahead of all proprietary ones for this comprehensive web engineering benchmark." Wharton professor Ethan Mollick described it as the "closest to the frontier yet."
The company was launched in early 2023 by 34-year-old Yang Zhilin, who previously cofounded Recurrent AI, a startup applying artificial intelligence to sales conversations. Yang holds a Ph.D. from Carnegie Mellon University, where his advisor, Ruslan Salakhutdinov, called him "absolutely brilliant." Yang also contributed to major domestic infrastructure, including Huawei's PanGu model and the Beijing Academy of Artificial Intelligence's Wu Dao.
Moonshot AI's underlying strategy relies heavily on scaling computing power rather than inventing new algorithms. "If you can solve it with scale, don't solve it with a new algorithm. The new algorithm's value is to enable better scaling," Yang told journalist Xiaojun Zhang. The team has developed foundational technologies like Transformer-XL and RoPE, initially gaining fame by giving its Kimi K2 model a trillion-parameter context window.
Kimi K3's success has reignited discussions about US immigration policy and the retention of foreign tech talent. Billionaire investor Vinod Khosla criticized the Trump administration, stating: "Even bigger issue is the brilliant talent we are scaring away from other countries with our immigration policies for great talent." However, Salakhutdinov noted that Yang was always determined to return home to build his own firm.
Looking ahead, Yang is positioning Moonshot AI to compete at the highest level of the industry. "The ultimate AGI company will dwarf today's giants — double, triple the scale. Not necessarily OpenAI, but such a company will exist," he said.
