Moonshot AI's Kimi K3 has taken the top spot in a front-end coding leaderboard, giving Sacks fresh ammunition against tighter U.S. AI rules.

Moonshot AI released Kimi K3, a 2.8 trillion-parameter open-source AI model from China that rivals OpenAI, Anthropic and other top U.S. systems in frontier AI benchmarks.

Kimi K3's early performance is fueling alarm in Silicon Valley and Washington.

Moonshot AI’s Kimi K3 is very good — but the hype may be getting ahead of reality. (For now.)

By Tracy Qu and Raffaele Huang

Kimi's K3 model has caught up to the American frontier.