According to CoinMeta, after releasing Hy4 and preview, Tencent's Hunyuan team took a one-week vacation. Areas of the team that had been in operation for a long time were almost deserted this week. This vacation is related to the release of the latest version of Hunyuan. On August 28th, Tencent open-sourced Hy4 and preview, which is currently the largest open-source model version of Hunyuan, with a total of 770 billion parameters, 49 billion active parameters, and a context length of over 1 million. Before the release of Hy4 and preview, the team had been working at high intensity for several months. After the versions were launched and recognized internally, the company arranged for the team to take a phased break. Against the backdrop of an accelerating competition in large-scale models, long-term intensive research and development by model teams has become the norm in the industry. Many teams immediately move on to the next round of development after releasing their models, so this arrangement of taking a concentrated rest after completing phased goals is relatively rare.