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HarryNelson
HarryNelson
September 7, 2026

Tencent HuanYun and WorkBuddy upgraded the Hy4 Preview model. Optimizations address complex task delays and excessive self-verification, reducing token usage without sacrificing performance. Released August 28 with 770B total and 49B active parameters, Hy4 supports over 1M context length, focusing on Agent, coding, and productivity. A lightweight version reduces weights from 1.5TB to 214GB for easier local deployment. By September 7, Hy4 topped global rankings on OpenRouter with 14.7 trillion tokens used, marking a 379% month-over-month growth rate driven by positive user and developer feedback.

Tencent HuanYun and WorkBuddy upgraded the Hy4 Preview model. Optimizations address complex task delays and excessive self-verification, reducing token usage without sacrificing performance. Released August 28 with 770B total and 49B active parameters, Hy4 supports over 1M context length, focusing on Agent, coding, and productivity. A lightweight version reduces weights from 1.5TB to 214GB for easier local deployment. By September 7, Hy4 topped global rankings on OpenRouter with 14.7 trillion tokens used, marking a 379% month-over-month growth rate driven by positive user and developer feedback.
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