Tencent Launches Hy4 With Vision and Computer Use, Open Weights Promised
Tencent says weights and system cards will follow in the coming days. Its benchmark results come from its own internal evaluations.
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Tencent has released Hy4, its latest large language model, adding visual understanding and computer use for the first time. The company says model weights and system cards will follow in the coming days.
Photo: geralt / Pixabay
At a glance
| New capabilities | Visual understanding; computer use (command line and GUI) |
| Open weights | Promised “in the coming days” |
| Price | About $0.90 / $2.70 per million input / output tokens |
| Promotion | 50% off on Tencent Cloud TokenHub through Dec. 31, 2026 |
| Third-party API | OpenRouter, Hermes, OpenCode |
What Tencent announced
Tencent announced Hy4 on November 4, describing it as among the world’s leading open-source models. The weights are not out yet. Tencent says it plans to release them, along with system cards, in the coming days.
According to Tencent, Hy4 is its first model with visual understanding. It can handle fine-grained image processing, complex chart analysis and mathematical visual reasoning. It is also Tencent’s first model with computer use, meaning it can operate both command-line and graphical interfaces, and Tencent says it trained the model specifically on Blender and CAD software. The company also reports better instruction following, long-context understanding and long-horizon agentic tasks.
Tencent’s own numbers
All of the following results come from Tencent’s own or internal evaluations and have not been independently verified.
- WorkBuddy: an average score of 83.18 and a 96.15% pass rate, ranking first in nine of twelve scenarios in mainland China.
- Finance: in a blind evaluation run with Tencent Financial Technology, involving 213 professionals and 579 tasks, Hy4 scored 3.04, compared with 2.97 for DeepSeek-V4.1-Flash-1017 and 2.68 each for Kimi K3.1 Pro and GLM-5.3.
- Hallucinations: the rate fell from 12.95% in Hy4 Preview to 7.2% in internal tests.
- Games: scores rose 19.1% in GameDev and 9.8% in GameLogic over Hy4 Preview. Tencent also says it integrated the model with Unreal Engine, Unity and Godot.
Safety
Tencent says Hy4 was trained on defensive security data and that offensive exploitation material was excluded. Security assessments by its Xuanwu Lab and Keen Security Lab found no significant concerns about offensive cyber capabilities in the areas evaluated. On biology, Tencent says the model’s ability in open-ended experimental design is more limited than that of frontier models.
The Hy team also open-sourced two research models built with Hy4: HyCell, for single-cell representations, and HyPDE, for physics fields.
Availability and price
Hy4 is available in Tencent products including Tencent Cloud TokenHub, WorkBuddy, CodeBuddy, Yuanbao, WeCom’s Dayuan assistant and ima. Its API is also offered through OpenRouter, Hermes and OpenCode.
Pricing is unchanged from Hy4 Preview, at about $0.90 per million input tokens, $2.70 per million output tokens and $0.045 per million cached input tokens. TokenHub is offering it at 50% off through December 31, and WorkBuddy and CodeBuddy are free from November 4 to 15. A cheaper Hy4 Flash is “scheduled for release soon.”
What to watch
When the weights and system cards appear, what license they carry, and whether independent benchmarks support Tencent’s figures.
More coverage is on our Artificial Intelligence hub.
How we reported this
We read Tencent’s announcement in full. Every benchmark is Tencent’s own. Parameter count, architecture, license terms and the exact date of the open-weights release could not be verified and were left out.
Published and fact-checked November 4, 2026.
Sources
- Tencent: Tencent Launches Hy4, Joining the Ranks of the World’s Leading Open-Source AI Models
- Tencent Hy
DailyMech used AI tools to help research and draft this article; it was fact-checked by our editors.