Luis von Ahn is the cofounder and CEO of Duolingo, a popular language-learning app with more than 31 million monthly active users.
Von Ahn led the development of "Birdbrain", a machine learning model that estimates a user's language proficiency and then personalizes exercises.
In 2023, Duolingo launched a new "Max" tier for its language-learning users.
This year, Duolingo launched a Video Call feature where learners can practice talking in real time with an AI character.
Von Ahn is a former computer science professor at Carnegie Mellon University and the co-inventor of CAPTCHAs, the way to determine if a computer user is human.
Persons:
Luis von Ahn, Von Ahn, Duolingo
Organizations:
Carnegie Mellon University