ChainCatcher report: Tencent Hunyuan has released and open-sourced its next-generation large language model, Hy4 preview. With a total of 770B parameters and 49B activated parameters, the model supports a context length exceeding 1M and demonstrates strong capabilities in real-world productivity tasks such as coding, office work, and scientific research, firmly ranking among the top tier of open-source models. Hy4 preview significantly expands model size, context length, and data scale, while enhancing real-world performance through collaboration with high-quality data from Tencent experts in software engineering, gaming, finance, and security, as well as deep integration with products like WorkBuddy. In software engineering, the model enhances understanding, planning, debugging, and validation for long-range development tasks, enabling it to build complex frontend projects like a miniature Three.js town from scratch. In game development, it supports generating playable prototypes from a single prompt and completing full demos within Unity. For intelligent office use, it handles complex financial audits by filtering, analyzing, and delivering results across multiple documents. In scientific research, it accelerates tasks such as molecular dynamics simulations and has begun establishing a recursive self-improvement loop. Hy4 preview is available for experience within Tencent products including WorkBuddy/CodeBuddy (domestic and international versions), Yuanbao, and ima, and can also be accessed via API through Tencent Cloud Tokenhub and OpenRouter. WorkBuddy/CodeBuddy will offer a two-week limited-time free trial. Since rebuilding its infrastructure, Hunyuan has iterated on major versions approximately every two months, following a strategy of releasing preview versions first, followed by official releases for continuous optimization.
Tencent HunYuan releases and open-sources the Hy4 preview with 770 billion total parameters.
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Summary
Tencent HunYuan has open-sourced its latest large language model, Hy4 Preview, featuring 770 billion total parameters and 49 billion active parameters. The model supports contexts of over one million tokens and excels in real-world tasks such as coding and research. Built using data from Tencent’s software, gaming, and finance teams, it integrates with tools like WorkBuddy and CodeBuddy. Users can access it via Tencent Cloud Tokenhub or OpenRouter. A free trial is available for WorkBuddy and CodeBuddy. Top altcoin news highlights growing interest in AI-driven tools, particularly as inflation data shapes broader technology investment trends.
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