Moonshot AI Releases Kimi K3, the World's Largest Open-Source Model by Parameters, Reaching 2.8 Trillion

According to Xinhua News Agency, Beijing Moonshot AI Co., Ltd. officially released the new generation large model Kimi K3 on July 16, with a parameter scale reaching 2.8 trillion, becoming the largest open-source model by parameters globally at present. Kimi K3 natively supports visual understanding, features a 1 million token context window, and is optimized for complex task scenarios such as software engineering, knowledge work, deep research, and multimodal understanding, with a comprehensive intelligence level approaching global frontier closed-source models. The model is trained using a self-developed underlying architecture. Moonshot AI stated that nearly 3 trillion parameters mean the model can store more knowledge and patterns, achieving "knows more, thinks deeper, answers more accurately."