AI study tool that turns lectures and learning materials into notes, flashcards, quizzes, and tutoring
Know which headline wins before you spend traffic on it.
Stage
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Pricing model
Freemium
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Free: $0/month with 5 rankings and 60 Claude-written options monthly. Creator: $19/month with 100 rankings and 2,500 options. Pro: $49/month with 600 rankings and 6,000 options. Agency: $149/month with 3,000 rankings and 20,000 options.
Key features
Automatic summarization of lectures and content
AI-generated flashcards with active recall
Auto-generated practice quizzes
24/7 AI Tutor for question answering
Support for multiple file formats
Live lecture recording capability
Unlimited uploads and daily usage
Per-session progress tracking
Multi-language support
Head-to-head comparison of up to 200 variants
Bradley-Terry model ranking with calibrated odds
Honest uncertainty verdicts: Clear, Lean, Too close to call
Brand profiles to calibrate accuracy on your audience
Works for YouTube titles, subject lines, ad headlines, and article headlines
Accuracy measured on 9,841 held-out A/B tests
What makes it different
Designed specifically for learning with science-backed cognitive science methods
Supports more file types and formats than competitors
Complete study system in one platform
Used by 5 million students worldwide
82% accuracy on clear calls, trained on thousands of real A/B tests never seen during tuning
Honest about uncertainty instead of always crowning a winner
56 times cheaper than Claude Sonnet while maintaining comparable accuracy
Custom calibration to your audience's behavior via brand profiles
Compare versions in both orders to cancel out model bias
Mindgrasp
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