Pluribus is a computer poker player using artificial intelligence built by Facebook's AI Lab and Carnegie Mellon University.
The base strategy was computed in eight days, and at market rates would cost about $144 to produce, much smaller than contemporary superhuman game-playing milestones such as AlphaZero.
In The Wall Street Journal, science editor Daniela Hernandez characterized Pluribus as "advanced at a key human skill — deception".
[3][4] Playing No-Limit Hold'em against five professional poker players, Pluribus won an average of $5 per hand with winnings of $1,000 per hour, which Facebook described as a "decisive margin of victory.
"[5][6] Following the victory, the developers declined to release the source code, out of fear it would be misused to surreptitiously cheat against human poker players in online matches.