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2026
Tencent Hunyuan releases open-source flagship model Hy4preview
Tencent Hunyuan officially released Hy4preview, a new-generation open-source flagship large model with 770B total parameters, 49B activated parameters and a 1M context length, positioned for real productivity scenarios. The model was open-sourced on HuggingFace, Github and Modelscope, and launched on Tencent Cloud TokenHub and OpenRouter, with user access in WorkBuddy/CodeBuddy, Yuanbao and ima.