Artificial intelligence beats humans in poker for first time

Imagine your smartphone being able to negotiate the best price of a new car for you -- that's one of the potential implications of artificial intelligence beating humans in poker for the first time, experts say. Libratus, an AI built by Carnegie Mellon University (CMU), racked up over $US1.7 million ($2.2 million) worth of chips against four of the top professional poker players in the world in a 20-day marathon poker tournament that ended in Philadelphia on Tuesday.. While machines have beaten humans over the last two decade in chess, checkers, and most recently in the ancient game of Go, Libratus' victory is significant because poker is an imperfect information game -- similar to the real world where not all problems are laid out. The difficulty in figuring out human behaviour is one of the main reasons why poker was considered immune to machines. "The best AI's ability to do strategic reasoning with imperfect information has now surpassed that of the best humans," said Tuomas Sandholm, professor of computer science at CMU who created Libratus with a PhD student Noam Brown.