Hy3 preview

Hy3 Preview is a new artificial intelligence model created by Tencent. It was built to work better within Tencent's large ecosystem of apps and services. The company launched this model in February 2026 after a complete rebuild of its training and learning systems. The goal was to create a tool that is fast, reliable, and easy to use in real-world situations rather than just on paper tests.

Benefits

Hy3 Preview offers several key advantages over older models. It uses a special design called a mixture-of-experts. This means the model has a large total size but only activates a smaller part of itself for simple tasks. This allows it to handle complex problems with deep reasoning while keeping costs low. The system is much faster than its predecessor, reducing response time by over half. It also achieves a success rate above 99.99% in production environments. The model focuses on practical reliability instead of just high benchmark scores. It handles incomplete information by refusing to guess rather than making things up. It also understands human emotions well, allowing it to adjust its tone and conversation style naturally.

Use Cases

This tool is designed to be integrated directly into various products. It is currently being used in Yuanbao, WorkBuddy, CodeBuddy, and QQ Browser. In the workplace, it can organize meeting schedules from scattered notes and manage travel plans across multiple days. For developers, it assists in coding tasks with high stability in long workflows. The model is particularly useful for social interactions where understanding a user's mood is important. It can assess emotional states quickly and plan how to keep a conversation open and friendly. Because it is open-sourced, other developers can also use the code to build their own applications.

Pricing

Tencent has made the model available through an API. The cost for using the service is roughly one-tenth of the price for GPT-4 class models. This makes it a very affordable option for businesses and developers who need powerful AI capabilities.

Vibes

Users and developers are responding very positively to the model. Early tests show that it performs exceptionally well in real-world scenarios. The success rate in production is extremely high, which builds trust among users. The ability to handle complex multi-step tasks without errors is a major highlight. People appreciate that the model does not hallucinate or invent facts when data is missing. The conversational quality is also praised, with users noting that it feels more human and less robotic than other AI assistants.

Additional Information

Tencent has shared the model's code on GitHub and Hugging Face to encourage community development. The company has invested heavily in rebuilding its infrastructure to support this launch. The development timeline was very short, taking only ninety days from start to live deployment. This speed was achieved by following specific principles like cost-performance and authentic evaluation. The model represents a strategic shift toward optimizing for emotional connection and conversational fluency rather than just raw power.