Kimi K3 is here 🧠 Moonshot AI just released the world's first open 3-trillion-parameter class model. It's the first open-weight model to lead the frontend Code Arena at launch, with a 1,679 Elo score on Arena.ai's independently verified leaderboard, surpassing many closed-source SoTA models. It combines a 1M-token context window with native visual understanding, structured outputs, configurable reasoning effort, and strong support for multi-step execution across large codebases and document-heavy workflows.