Hy4 preview
Open Source
Tencent’s 770B open model for long-horizon work
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.
Hy4 preview is a Open Source company. It launched on Product Hunt on Aug 29, 2026, with 216 upvotes.
Hy4 preview timeline
- Tencent’s 770B open model for long-horizon work
People at Hy4 preview
No one on file at Hy4 preview yet. New people are added as we find them.