Duolingo went AI-first and fired contractors — users deleted the app in protest

Duolingo, the world's most popular language-learning app with over 500 million users, announced a strategic shift to become an 'AI-first' company in early 2025. CEO Luis von Ahn stated that the company would replace contracted workers with AI automation, arguing that the company needed to 'take occasional small hits on quality rather than move slowly and miss the moment.' The move followed a January 2024 round where Duolingo had already cut roughly 10% of its contract workforce, explicitly citing generative AI as the reason.

The announcement triggered widespread user backlash. Thousands of users publicly deleted the app, ended multi-year learning streaks, and flooded Duolingo's social media channels with complaints. The company's Instagram and TikTok feeds became targets for angry comments, eventually forcing Duolingo to remove all videos from both platforms. The company later posted a sarcastic video attempting to downplay the controversy and a separate video from the CEO trying to clarify the role of AI in the product.

The backlash highlighted a fundamental tension in Duolingo's model: its gamification mechanics created enormous user engagement, but also deep emotional investment. Users who had maintained streaks for years felt personally betrayed by a company that appeared to prioritize cost-cutting over the human touch that made the app feel supportive rather than algorithmic. The incident became a case study in how AI substitution strategies can damage consumer brands whose value proposition includes a sense of human connection.