Tencent open-sources Hy4 Preview: 770B params, 1M context, Apache 2.0
xeophon · x · 2026-08-28
Tencent has released Hy4 Preview on Hugging Face: 770B total parameters with 49B active (A49B), 1M context window, under Apache 2.0. Reported scores are strong, roughly on par with GLM-5.3. Commenters note Tencent has really picked up model training since Shunyu Yao joined. The chat template shows support for thinking mode, reasoning-effort control and tool calls.
Related event: Tencent Open-Sources Hunyuan Hy4 Preview: 770B MoE with 1M Context(28 posts)→
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