Vivix just shipped A1 and it's got something. Full-duplex, full-body digital human.
Siri-style turn-taking is half-duplex: you talk, then it talks. A1 runs full-duplex, listening while it replies, talking over you and cutting in like a real person.
The full-body part is what got me. This thing walks, turns, crouches to grab objects, holds them up, swaps products mid-demo. First time I've seen that in a digital human.
For live commerce it's basically a host that picks up your product, demos it, and changes outfits to match your brand, 24/7, no cuts.
They ship a standard API, so you can drop it into anything. Point it at your product and it's a support agent. Drop it in a game and it's a companion. Put it on a stream and it's your host. The use cases pretty much write themselves.