Tencent Hunyuan launches Hy Realtime voice model with agentic tool calling

The notable signal here is deployment rather than benchmark claims: Hy Realtime is already running inside Yuanbao voice calls and Tencent's own customer service before reaching Tencent Cloud as an API, meaning it is being validated on internal, high-volume traffic first. Agentic tool calling in a real-time speech layer is the piece that matters, since it shifts voice from a conversational interface toward one that can execute tasks. The open question is whether external developers adopt the API at the same pace as Tencent's internal rollout, and how the singing and expression features are positioned against rival voice stacks.