Libratus is an artificial intelligence (AI) program for playing Heads-Up, No-Limit Texas Hold'em. It was developed at Carnegie Mellon University's School of Computer Science by Prof. Tuomas Sandholm and Ph.D. student Noam Brown. Libratus's strategy is not based on the experience of expert human players, so its game play could differ markedly from the pros. It uses algorithms to analyze the rules of poker and set its own strategy, based on approximately 15 million core hours of computation at the Pittsburgh Supercomputing Center (PSC). Libratus will continuously sharpen its strategy during the Brains vs. AI competition, performing computations with the PSC's Bridges computer each night while the pros get some shuteye.