Tencent launches Hunyuan Hy3, integrates model across multiple products

On Monday, Tencent launched Hunyuan Hy3, a new reasoning model that integrates both fast and slow thinking. Built on a Mixture of Experts (MoE) architecture, Hy3 features 295 billion total parameters with 21 billion activated parameters and supports a context window of up to 256K tokens. Hy3 has been integrated into several Tencent products and services, including WorkBuddy/CodeBuddy, Yuanbao, Marvis, and ima.