August 29th.TencentMix release andOpen SourceNew Generation FlagModel Hy4 preview. The model uses a hybrid specialist structure with a total parameter of 770B, a activated parameter of 49B, a context length of 1M, and focuses on productivity enhancement tasks such as software engineering, game development, office and scientific research。

The organization 163 in-house experts performed 203 project blinding measurements, with an average score of 2.99 / 4.00 for Hy4 preview; the official presentation also showed the model's use of MCP operation Unreal 5 for shooting games, financial cost audits for processing 72 documents, and the coordination of several Cordex Summit experiments。
Model weights and reasoning codes have been published in GitHub and the developers can deploy and evaluate themselves. The official warehouse gave a description of the model structure and operation。