Tencent HY open-sourced Hy4 preview: a flagship MoE with 1M context, and their biggest generational leap measured to date. Apache 2.0.🔥 🤖 https://modelscope.cn/models/Tencent-Hunyuan/Hy4-preview ⚙️ 770B total params, 49B active per token. Ships with a native MTP layer for speculative decoding out of the box. 📊 Blind eval by 163 internal experts across 203 real engineering tasks: it edges out GLM 5.3 (avg 2.99 vs 2.92) and Kimi K3 (2.99 vs 2.94). 💼 Trained on real production workflows: software engineering, office and data analysis, game development, and scientific research. 🌍 For global users: https://modelscope.ai/models/Tencent-Hunyuan/Hy4-preview