The functionality currently is still limited to having verbal conversations with your character and simulating simple facial expressions, so they're not able to move or capable to physically interact with the user at this point, but we're working on exactly this feature right now and hope to release a prototype within the next few weeks. We provide an AI Plugin for VNGE, a Mod for Koikatsu, HoneySelect and other IllusionSoft games, so I think people in this community might be interested in trying it out. Some people might remember me doing an initial post about this Software back in August so it's kind of a repost however, we improved the user experience quite a lot since then, and also added new Integrations OpenAI for example. The goal is to make them as real as possible, and also give them the ability to live autonomously within a simulation or 3D Scene they've been placed in.
I am the creator of Harmony.AI, a Project which aims at simulating realistic characters in virtual environments by using modern AI technology.