Exclusive: How Duolingo vibe coded its way to a hit chess game

Duolingo’s new chess course is the clearest illustration of how a large, public company can use AI coding apps to accelerate its product development and empower employees.

Duolingo has been through a lot of changes over the past few years. What was once solely a language-learning app has grown into a social media marketing machine, a destination for math and music lessons, and now an online chess tutor.