Hy4 preview

Tencent’s 770B open model for long-horizon work

Product HuntOpen SourceLaunched Aug 29, 2026216#2 of the day

About Hy4 preview

Hy4 Preview is a 770B MoE model (49B active, 1M context) from Tencent, built for long-horizon agentic tasks. It autonomously handles coding, game dev, and complex document analysis, running its own tests and fixing bugs before delivery.

The people behind Hy4 preview

We haven't found the people behind Hy4 preview yet. New makers are added as we find them.

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