Tencent releases Hy4 model with computer-use capabilities

Tencent released the Hy4 model on November 4, 2026, adding computer-use capabilities to its lineup. The new system joins the top tier of Chinese open-weight AI systems for the first time. Hy4 integrates with major game engines including Unreal Engine, Unity, and Godot.

Hy4 is a 770 billion parameter model with a 1 million-token context window. The system improves over the Hy4 Preview by 19.1 percent on GameDev benchmarks and 9.8 percent on GameLogic benchmarks. Tencent plans to release the model weights and system cards in the coming days.

The model is priced at 90 cents per million input tokens and $2.70 per million output tokens. It is available on Tencent Cloud TokenHub, WorkBuddy, CodeBuddy, Yuanbao, and third-party sources like OpenRouter. Developers should test the new system to see if the performance gains justify the cost.