Tencent's hybrid model hy4 preview sees surge in usage, workbuddy expands resources

Tencent's Hybrid Model Hy4 Preview has seen a surge in usage since its launch on August 28, 2026, through WorkBuddy. The model's enhanced agent capabilities have led to high user engagement and demand, resulting in queueing on the first day of its release. Tencent has responded by urgently expanding its inference clusters to improve user experience, though peak demand may still cause delays. Users can switch to Hy3, which remains free until September 30, 2026. Hy4 Preview is free until September 10, 2026, with daily usage limits. It lacks multi-modal capabilities, so image and video tasks are handled by other models. Tencent announced Hy4 Preview on August 28, 2026, with 770B total parameters, 49B active parameters, and a 1M context length. The company claims it is among the top open-source models due to its expanded size and improved training.