DebateAI

DebateAI is a web platform for practicing structured argument against an AI opponent or another person. A user picks a proposition, chooses a side and argues it in turns, with the opponent pushing back in real time. A daily debate puts one motion in front of everyone and is numbered by day, and the site shows how many people have argued it. The topic library spans political, philosophical and ethical questions such as whether meritocracy is a myth, whether free will is an illusion and whether you would plug into a machine that simulates a perfect life. It suits anyone who wants to test their reasoning on contested questions without arranging a live debate, and it is deliberately low friction: no account is needed to spar, and signing in only counts the user in the day's field. Opponents include named AI personas modeled on public figures, and the site promises any topic against any opponent. Users can create their own debates, explore existing arguments and browse topics from the home page, and the whole experience runs in the browser. DebateAI publishes no pricing and presents no paid tiers; the site is free to use.