Nina Vasan, MD, MBA, a clinical assistant professor of psychiatry and behavioral sciences at Stanford Medicine.

AI companions: Character.AI, Nomi, and Replika.

In what way does talking with an AI companion differ from talking with a friend or family member?

One key difference is that the large language models that form the backbone of these companions tend to be sycophantic, giving users their preferred answers. The chatbot learns more about the user’s preferences with each interaction and responds... See more