Turbo AI (formerly TurboLearn AI) is an AI-powered note-taking and study platform used by over 5 million students across 5,000 colleges that converts lectures, PDFs, YouTube videos, and audio recordings into structured notes, flashcards, quizzes, summaries, and AI-generated podcasts in under 30 seconds. Founded by Duke and Northwestern dropouts Rudy Arora and Sarthak Dhawan, it has grown to roughly $21 million in ARR almost entirely through subscriptions. Its key features include live lecture recording with real-time transcription, AI note generation with automatic summaries, flashcard creation with spaced repetition and Memory Score tracking, unlimited quiz generation with adjustable difficulty, a two-host AI podcast converter for on-the-go review, an in-app AI chat assistant grounded in your uploaded content, collaborative workspaces, and cross-device sync. It is designed primarily for college students preparing for exams, though it also serves professionals at firms like McKinsey and Goldman Sachs for meeting summaries. The free plan is quite limited at 2 hours of lecture processing, 1 PDF upload, and 10 chat messages; paid plans run approximately $5.99/month (Pro) and $12.99/month (Unlimited), with roughly 33% off on annual billing.
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