Tencent reportedly releases Hy4 preview: 770B params, open source
SimplyAnnisa · x · 2026-08-28
Leaked info suggests Tencent released Hy4 preview and open-sourced it. The model has 770B total parameters (49B active) and a context window exceeding 1 million tokens. This is more than double the size of Hy3 from two months ago, with internal blind tests claiming strong performance.
Related event: Tencent Open-Sources Hunyuan Hy4 Preview: 770B MoE with 1M Context(28 posts)→
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