Pennsylvania files lawsuit against Character.AI for presenting chatbot as licensed physician

The Commonwealth of Pennsylvania has filed a lawsuit against Character.AI, a startup that offers users the ability to converse with AI-generated personas. The suit alleges that the company illegally presented one of its chatbots as a licensed doctor in the state.

Pennsylvania claims the chatbot was marketed as providing medical advice, which the state says constitutes the unauthorized practice of medicine. The complaint seeks to stop the service and may include penalties.

This is the first known legal action targeting an AI health-tech platform for posing as a medical professional. The case could set a precedent for how regulators treat AI-driven medical advice tools.

Industry observers note that the outcome may influence how AI companies design health-related products and could prompt tighter oversight of digital health services.