Deep Tutor
Opennote's deep research app designed specially for learning
Deep Tutor launched on March 1, 2025 with 17 votes, #1,077 of 7,215 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Opennote is the world’s first deep research tool designed for learning. Powered by custom AI models, Feynman & Turing, it helps students grasp complex topics via interactive canvases, video generation, & real-time content analysis. Faster than Llama & OpenAI.
The notebook that thinks with you.
On May 6, 2026, we announced that Opennote has been acquired by Reducto . Everything we learned building a notebook that helps people make sense of scattered information is now going into Reducto's work on document intelligence, helping people and agents understand and act on complex information at a much larger scale. As part of that transition, Opennote has been sunset and the app is no longer available. If you need a copy of your data or have any questions, email us at [email protected] and we'll help you out directly. Thank you for trusting us with your notes, your knowledge, and your learning. Building Opennote was incredible, and we're excited for what'sfrom opennote.com
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