Tencent releases Hy4 with vision understanding and computer operation, plans to open model weights

Tencent Launches Hy4, One of the Leading Open-Source AI Models

Tencent released Hy4, a new large language model that adds vision understanding and computer operation. The company says it will publish the model weights and a system card in the coming days. Hy4 improves instruction following, long-context understanding and long-horizon agent tasks, and is already live in WorkBuddy, CodeBuddy and Tencent Cloud TokenHub.

Why it matters: Hy4 adds vision and computer operation while keeping Hy4 Preview pricing, so the wider task range comes without a higher standard call price.