Tencent releases Hy4 AI model, claims top-tier status among Chinese open-source systems

Nov 4, 2026

On November 4, 2026, Tencent Holdings Ltd. released its Hy4 foundation model, claiming top-tier status among Chinese open-weight systems with new visual understanding and desktop workflow capabilities. Led by former OpenAI researcher Yao Shunyu, Tencent restricted Hy4's cybersecurity training to defensive software repairs amid global safety concerns. Facing a 35% drop in market value this year to $460 billion, Tencent is pivoting to open-source models and enterprise agents like WorkBuddy to drive cloud revenue.

Hy4 capabilities and release plans

▪Tencent stated that the Hy4 model introduces visual understanding, enabling it to execute tasks across command-line and graphical desktop interfaces
▪Tencent Holdings Ltd. released its new foundation AI model, Hy4, claiming it joins the top tier of Chinese open-weight systems for the first time
▪Tencent announced plans to release the model weights for Hy4 along with a detailed report describing Hy4's safety testing, as well as a faster, cost-efficient Flash version of Hy4

Hy4 safety controls and testing

▪Tencent restricted Hy4's cybersecurity training to defensive applications, excluding material on building hacking tools, system exploitation, and weak-point testing to mitigate misuse risks
▪Internal tests conducted by Tencent specialists found no indication that Hy4 increases risks of breaking into software, bypassing safety controls, or facilitating harmful biological experiments

Yao Shunyu's role and criticisms

▪Former OpenAI researcher Yao Shunyu publicly criticized Tencent's AI development culture for relying excessively on gaming benchmark scores
▪Former OpenAI researcher Yao Shunyu, who joined Tencent to oversee the Hunyuan series, revamped Tencent's research team and brought in former colleague Tian Yonglong to lead multimodal AI development

Competitor progress in Chinese AI

▪In summer 2026, models Kimi from Moonshot AI and Qwen from Alibaba Group Holding Ltd. challenged leading systems from OpenAI and Anthropic on certain global benchmarks
▪ByteDance Ltd. maintains market dominance in chatbots and video generation, while rival Chinese tech giant Alibaba Group Holding Ltd. prepares to launch its next-generation foundation model Qwen4