Tencent shares jump 6% following launch of Hunyuan Hy4 AI model

Market reaction to AI news

Tencent shares experienced a significant surge on Thursday, rising 5.93% to reach a price of HK$425.40. This jump marked the company's highest trading level since October 16, showing strong investor confidence in its latest technological move. The stock outperformed the broader Hang Seng Index, which saw a smaller gain of 3.3% during the same period.

The primary driver for this price action was the official launch of the Hunyuan Hy4 model by the Tencent Hunyuan team. Investors are closely watching how the company balances its massive infrastructure investments with tangible product releases. The market appears to be rewarding Tencent's ability to iterate quickly on its core artificial intelligence offerings.

As reported by Yahoo Finance Singapore, the stock's performance highlights the importance of AI milestones for Chinese technology giants. By demonstrating progress in model scale and functionality, Tencent is positioning itself as a major player in the global AI race. The move comes at a time when competition with leading US developers is intensifying across the industry.

Technical leaps in Hy4

The new Hy4 model represents a substantial increase in scale compared to its predecessor. Reports indicate that Hy4 has expanded to 770 billion parameters, whereas the previous Hy3 series featured fewer than 300 billion. This increase in parameters generally allows the model to handle more complex data and provide more sophisticated outputs for users.

Beyond just size, the Hy4 model introduces several new functional capabilities that were not present in previous versions. It now includes visual understanding, which allows the system to process detailed images and analyze complex charts. It is also capable of performing mathematical visual reasoning, making it more useful for data-heavy professional tasks.

Furthermore, the model can now perform long-horizon agentic tasks, which involve planning and executing multi-step actions over extended periods. It has been specifically trained for professional software applications like computer-aided design (CAD) and Blender. These improvements are designed to help the model follow instructions more accurately in complex, real-world scenarios.

Computer-use and integration

One of the most notable additions to the Hy4 model is its computer-use capability. This allows the AI to interact directly with both command-line and graphical interfaces to perform tasks across different applications. Instead of just generating text, the model can navigate software environments to complete specific workflows for the user.

Tencent is already moving to integrate these capabilities into its existing productivity platforms. The model is being incorporated into WorkBuddy and CodeBuddy, which are designed to assist users with professional tasks. By placing the AI directly into these tools, Tencent aims to make the technology more accessible for enterprise and consumer use.

To support developers and businesses, Tencent is making the API available through its Tencent Cloud TokenHub. The company has stated that it will keep the API pricing the same as the previous Hy4 preview version. This strategy suggests a desire to encourage rapid adoption of the new model's capabilities across various third-party platforms.

Open source and safety

Tencent is continuing its open-source AI strategy by planning to release the model weights and system cards in the coming days. This transparency is intended to help the developer community understand and build upon the Hunyuan architecture. It also aligns with the company's broader goal of strengthening its AI model development ecosystem.

Safety and security remain a priority for the company as it rolls out these powerful tools. Tencent stated that it restricted the cybersecurity training of Hy4 to defensive applications only. This means the model can be used to identify and fix software vulnerabilities, but it is barred from helping users build hacking tools or break into systems.

The company has maintained a steady pace of updates since rebuilding its AI infrastructure in February. According to Caixin, Tencent has been releasing major Hunyuan model updates approximately every two months. This consistent release cycle demonstrates a commitment to rapid development as the company tries to keep pace with global technological shifts.