Cosminds
Organize what you learn by idea, not by source.
Cosminds turns everything you read and watch into knowledge you keep. Add a book, YouTube video, article, PDF, or your own notes, and it distills the core ideas, files them by concept instead of by source, and connects them across your whole library. The built-in AI Wiki answers questions only from what you have saved, with citations, and refuses topics you have not covered, so it never invents an answer. Each idea becomes a short recall test that an AI grades, then schedules for spaced review. All AI runs on Anthropic Claude in EU regions only, so your content never leaves the EU.
Features
- Multi-source capture: forge books, YouTube videos, articles, PDFs, and your own notes into structured knowledge.
- Organized by concept, not by source: related ideas from different sources sit together by domain.
- Cross-source insights: surfaced only when two or more of your sources agree or contradict each other.
- Grounded AI Wiki: answers built only from your library, with citations, refusing anything you have not covered.
- Active recall and review: write each idea from memory, graded by AI, then scheduled for spaced repetition.
- EU-only AI: runs on Anthropic Claude via AWS Bedrock in EU regions.
Use Cases
- Retain what you read: keep the ideas from books and articles instead of forgetting them within a week.
- Study for exams: turn textbooks and lecture videos into graded recall drills.
- Research a topic across sources: see where different authors agree or clash before you form a view.
- Turn long videos into notes: forge YouTube videos and podcasts into structured takeaways.
- Build a second brain: one searchable library of your own thinking, organized by concept.
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Comments
Hi everyone, I'm Wojtek, the solo maker of Cosminds. I read and watched a lot and kept almost none of it. Highlights piled up in apps I never reopened. Notes turned into a graveyard I never searched. So I built the tool I wanted: one place where everything I take in gets distilled into ideas, connected across sources, and tested until it sticks. What makes it different from a notes app or a flashcard app: - It creates an insight only when two or more of your sources argue the same point or contradict each other, so you see agreement and conflict across everything you have read. - The AI Wiki answers only from your own library, with citations, and refuses topics you have not covered, so it never makes things up. - Each idea becomes a short recall test that an AI grades, then schedules for review. Five months of building alone, shaped by using it every day as a real reader. I would genuinely love your feedback, especially where it feels like too much or too little. Ask me anything.
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Comments
Hi everyone, I'm Wojtek, the solo maker of Cosminds. I read and watched a lot and kept almost none of it. Highlights piled up in apps I never reopened. Notes turned into a graveyard I never searched. So I built the tool I wanted: one place where everything I take in gets distilled into ideas, connected across sources, and tested until it sticks. What makes it different from a notes app or a flashcard app: - It creates an insight only when two or more of your sources argue the same point or contradict each other, so you see agreement and conflict across everything you have read. - The AI Wiki answers only from your own library, with citations, and refuses topics you have not covered, so it never makes things up. - Each idea becomes a short recall test that an AI grades, then schedules for review. Five months of building alone, shaped by using it every day as a real reader. I would genuinely love your feedback, especially where it feels like too much or too little. Ask me anything.
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