The latest rankings on the authoritative global model leaderboard LMArena are out: Kimi K2, a trillion-parameter open-source model developed by Moonshot AI, has soared to #1 among global open-source models! Kimi K2 is now integrated into major international development platforms like OpenRouter, Cline, and Visual Studio Code. Notably, it inherits DeepSeek-V3’s architecture but enhances performance through optimizations like increasing expert modules and reducing attention heads. This achievement highlights China’s thriving open-source ecosystem, where models evolve through mutual inspiration.