Tavus just shipped conversational virtual beings you can talk to on your phone—basically persistent AI companions they call 'Pals.' The tech stack enables real-time voice interaction with memory persistence across sessions.

Core use cases emerging: autonomous vehicle copilots, humanoid robot interfaces, and BCI (brain-computer interface) interaction layers. Early adopters are retail (virtual shopping assistants), museums (interactive guides), and game studios (dynamic NPCs with actual conversational depth).

The architecture here matters because it's not just another chatbot wrapper—these companions maintain context over time and can be embedded into physical hardware ecosystems. Think less 'customer service bot' and more 'persistent digital entity that rides with you across devices.'

If you're building anything in spatial computing, robotics, or next-gen UX, this is worth a deep dive. The companion layer is becoming infrastructure.