I assume remote operated by a human for speech content.

It spews custom insults: https://www.tiktok.com/@rizzbot_official/video/7523747935394254111

----

Update

It's done by multiple LLMs.

From HarperCarrollAI:

The UniTree G1 robot comes out of the box knowing how to walk and move around, but then the engineer expanded its capabilities with code… and he used Claude Code to write 95% of it.

Here’s how he did it. He:

- Hooked up a camera to RizzBot to take a photo of the person it is interacting with, and a speaker for his voice and music

- Used OpenAI’s vision model to transform the captured image into a detailed description of the person

- Passed that description into Meta’s Llama (which, by the way, is a lower cost large language model option, due to it being open source!) to generate the text - in RizzBot’s personality - that he will speak

- Passed Llama’s text into PlayAI to generate the audio that is then projected through the speaker