Tencent announced Tencent Hy4 on November 4, 2026, saying the model sits among the world’s leading open-source AI systems, according to the South China Morning Post, which reports the release lands as the open-weight race between Tencent, DeepSeek, Z.ai and Alibaba gets more crowded. The Hy4 preview is a 770 billion parameter Mixture-of-Experts model that activates 49 billion parameters per token and ships under the Apache License 2.0. Tencent describes Hy4 as a large language model built on a Mixture-of-Experts design, with visual understanding as one of its headline abilities, and says a related model, Hy4 Flash, targets buyers who care more about cost than peak capability and carries over Hy4’s visual-understanding and agentic capabilities. The article states that a permissive license plus downloadable weights means a team can run, fine-tune and ship the model without asking Tencent for permission, and that few models at this scale come with terms that clean. It also notes that the ranking claim is Tencent’s own positioning, as the retrieved sources do not establish a precise ranking and publish no benchmark table placing Hy4 at a specific position.