Tencent Hy4 is a 770-billion-parameter mixture-of-experts language model released on 4 November 2026. It is the first model in Tencent's Hunyuan line that can both see images and operate a computer, reading screens, clicking interface elements and running commands across applications. It is available now through an API, with its weights promised but not yet published.

Key takeaways

Hy4 is a 770B mixture-of-experts model with 49B active parameters per token and a 1-million-token context window.

Its headline feature is computer use: GUI and CLI operation, with targeted training for Blender, CAD, Unreal Engine, Unity and Godot.

It is live on OpenRouter as tencent/hy4 at a list price of $0.834/$2.501 per million input/output tokens, with a promotional rate near $0.42/$1.25.

Every benchmark in the launch materials is Tencent-reported.…