Amadeus is an Artificial Intelligence (A.I.) program derived from a copy of a person's memories. It is developed by a research team composing of Alexis Leskinen, Maho Hiyajo, and Kurisu Makise. A person could interact with its AI, through a computer or a specially developed mobile application. Like a real person, the AI has a capability to lie and expressed emotions.
Copies of memories of Kurisu Makise and Maho Hiyajo have both been converted into an A.I. for the Amadeus program.