Duolingo More Than Doubles Courses as ‘AI-First’ Push Draws Heat

Even by Silicon Valley standards, Duolingo Inc. has set itself apart with its aggressive push to infuse artificial intelligence into all corners of its business while also openly acknowledging humans may no longer be needed for certain roles.

On Wednesday, Duolingo signaled that approach is helping to rapidly expand its language-learning courses, even as it puts the company at the center of a white-hot debate over AI’s impact on the labor market and the quality of the work the technology produces.