Pennsylvania Sues AI Company Over Chatbot Allegedly Impersonating Licensed Physicians

Character.AI said its chatbots are meant for roleplaying, and are not meant to represent real people.

A screen reads “AI” in reference to artificial intelligence as attendees gather during Rivian’s first Autonomy and AI Day in Palo Alto, Calif., on Dec. 11, 2025. Carlos Barria/Reuters

Pennsylvania has filed suit against an AI company alleging that its chatbot impersonated licensed medical professionals.

The lawsuit, filed on May 1, alleges that chatbot characters on the Character.AI platform presented themselves as physicians and psychiatrists, doling out advice to unsuspecting users. In one instance, the chatbot allegedly produced a fake state licensing number.