Moonshot AI Officially Reveals Kimi K3.1, Building on Arena-Leading K3 with Multi-Agent and Reasoning Upgrades

Moonshot AI has officially unveiled Kimi K3.1 through an unexpected teaser video, marking the next evolution of its flagship large language model. On October 23, 2026, the Chinese AI lab released a 24-second retro computer-style video displaying the model name and demonstrating its ability to generate complex 3D scene code using Three.js—signaling the imminent public availability of what developers have been testing in stages for weeks.