# Tencent — Tencent Launches Hy4, Joining the Ranks of the World’s Leading Open-Source AI Models

- Company: Tencent (tencent.com)
- Announced: 2026-11-04T08:06:53+00:00
- Category: new-model
- Coverage: not counted
- Announcement: yes
- Group: models
- Source: https://www.tencent.com/tencent-launches-hy4-joining-the-ranks-of-the-worlds-leading-open-source-ai-models/
- Record: https://forck.live/items/32484-tencent-launches-hy4-joining-the-ranks-of-the-world-s-leading-open-source-ai
- Subject: Hunyuan
- Open weights: yes
- Models affected: Tencent Hy4, Hy4 Preview, DeepSeek-V4.1-Flash-1017, Kimi K3.1 Pro, GLM-5.3

Tencent released Tencent Hy4, its latest-generation large language model, which it says now ranks among the world's leading open-source AI models. Tencent Hy plans to release model weights and system cards in the coming days, with a focus on cybersecurity and biological safety. Hy4 adds visual understanding and computer-use capabilities for the first time, letting it work with command-line and graphical interfaces, and it was trained on professional software such as Blender and CAD. On Tencent WorkBuddy, benchmarks show an average performance score of 83.18 and a pass rate of 96.15 percent, with Hy4 first in nine of twelve scenarios in the mainland Chinese market. In a blind evaluation with Tencent Financial Technology, 213 financial professionals scored Hy4 highest among open-source models at 3.04, ahead of DeepSeek-V4.1-Flash-1017 at 2.97, Kimi K3.1 Pro and GLM-5.3 at 2.68. Targeted search optimisation cut its hallucination rate from 12.95% in Hy4 Preview to 7.2%, and errors from unsupported assumptions fell from 23.1% to 5.6%.

## Evidence

Verbatim from https://www.tencent.com/tencent-launches-hy4-joining-the-ranks-of-the-worlds-leading-open-source-ai-models/:

> Tencent today announced the release of Tencent Hy4, its latest-generation large language model, marking a significant leap in performance and capabilities that now ranks it among the world’s leading open-source AI models. Tencent Hy plans to release model weights and system cards in the coming days, reinforcing its commitment to responsible open-source AI development, with a focus on cybersecurity and biological safety.
> 
> The new model also introduces visual understanding capabilities for the first time, alongside major improvements in instruction following, long-context comprehension and long-horizon agentic tasks, delivering stronger overall performance across a diverse set of applications.
> 
> Through advanced visual understanding, reasoning, and tool-calling capabilities, Hy4 now supports a broader range of tasks, including fine-grained image processing, complex chart analysis, and mathematical visual reasoning.
> 
> Additionally, Hy4 introduces computer-use capabilities for the first time, enabling it to interact with both command-line interfaces and graphical user interfaces to perform a wide range of work and everyday tasks.

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Record: https://forck.live/items/32484-tencent-launches-hy4-joining-the-ranks-of-the-world-s-leading-open-source-ai
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