Tencent-Hunyuan-Large is an industry-leading open-source large mixture-of-experts (MoE) model developed by Tencent, featuring a total of 389 billion parameters and 52 billion active parameters. The model has made significant advancements in natural language processing, computer vision, and scientific tasks, particularly excelling in handling long-context inputs and improving performance on long-context tasks. The open-source nature of this model aims to inspire innovative ideas among researchers and drive advancements and applications in AI technology.