Duolingo reported second-quarter revenue of $252.3 million, a 41% increase from a year earlier and well ahead of the $240.7 million analysts expected. Diluted earnings rose to $0.91 a share, topping the $0.58 consensus, while net income reached $44.8 million. The language-learning company said subscription revenue grew 46% to $211 million, buoyed by wider adoption of its AI-enhanced Super and Max tiers. Key engagement metrics also improved: daily active users climbed 40% to 47.7 million and monthly active users rose 24% to 128.3 million. Duolingo attributed the gains to new features such as AI-driven conversational practice and the recent launch of Duolingo Chess. On the strength of the results, the Pittsburgh-based firm raised its full-year 2025 revenue forecast to between $1.011 billion and $1.019 billion, up from a prior range of $987 million to $996 million and above Wall Street’s $996.6 million consensus. It now projects adjusted EBITDA of $288.1 million to $295.5 million for the year and sees third-quarter revenue of $257 million to $261 million. Duolingo also disclosed the purchase of London music-gaming startup NextBeat’s 23-person team, expanding its push into non-language subjects such as music. Chief Executive Officer Luis von Ahn said lower AI operating costs and stronger advertising sales further supported margins. Investors welcomed the upbeat guidance and product expansion plans; Duolingo shares jumped roughly 20% in extended trading.