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\title{Science AMA Series: We are Professor Tuomas Sandholm and Noam Brown at
CMU. We built the first AI to defeat top humans in no-limit poker! AMA!}



\author[1]{No-Limit-AI }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


\vspace{-1em}



  
  \date{April 23, 2026}


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\begin{abstract}
Hello Reddit! We are PhD student Noam Brown and Professor Tuomas
Sandholm at the Computer Science Department of Carnegie Mellon
University. We do research on developing AIs that can reason about
hidden information (which is widespread in real-world strategic
interactions). Earlier this year we built Libratus, the first and only
AI to defeat top humans in no-limit poker. We played four of the world's
best pros in a 120,000 hand, 20-day Brains vs. AI match of heads-up
no-limit Texas hold'em, with a prize pool of \$200,000. The AI won the
match decisively, winning a combined \$1.8 million (at \$50/\$100
blinds). The victory was statistically significant with a p-value of
0.0002. The details of the bot were just published in Science Magazine!
We're here to talk about Libratus, the competition, what this means for
the future of AI, and any other questions you might have. We'll be back
at 9 am to answer your questions, Ask us anything! EDIT: We're closing
the AMA. Thanks for the questions everyone!%
\end{abstract}%



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