Physix Frontier · News Briefing Card (QbitAI · Nov 9, 2026)

Tencent Hunyuan Hy4 launches: 770B total params, first with vision and computer use

KEY FACTS

Tencent has released the official version of Hunyuan Hy4, with 770B total parameters and 49B activated parameters.
Hy4 introduces native visual understanding and computer use (CUA) capabilities for the first time.
WorkBuddy's domestic and international editions are the first to integrate Hy4 at launch.
Hy4 is now live on Tencent Cloud TokenHub, Yuanbao, WeCom and other products.
Model weights will be open-sourced soon, with API access on OpenRouter and other platforms.

KEY DATA

770BTotal parameters

49BActivated parameters

7.2%Hallucination rate (official version)

5.6%Speculation-type error rate (official version)

PHYSIX OBSERVATION

Hunyuan has bundled visual understanding, computer use and long-horizon agents into the open-source camp, with parameter scale closing in on closed-source flagships. The signal is clear: the competitive focus of open-source models is shifting from benchmark scores to real task delivery. For users, a model that can click the mouse itself and work while verifying is more productive than one that only chats; after the weights are open-sourced, how fast the ecosystem integrates is worth watching.

Source: QbitAI report