Best AI for lecture notes
Capture the lecture, then turn it into something you can study. Start free with Gemini Notebook for slides and readings, add Otter.ai if you need a live transcript, and always ask before recording a class.
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Start with Gemini Notebook
Upload lecture slides, PDFs and your own notes, then ask questions, make flashcards and quizzes, or get an audio overview built only from those sources. Free with a Google account.
Google's study and research notebook (formerly NotebookLM): add your notes, PDFs and readings, then get answers, flashcards, quizzes and audio or video overviews grounded only in those sources. · price: Free with a Google account (100 notebooks, 50 sources each); higher limits with Google AI Plus, Pro or Ultra · Easy
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// compare picks| Tool | Price | Difficulty | Best when… |
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| Gemini Notebook | Free with a Google account (100 notebooks, 50 sources each); higher limits with Google AI Plus, Pro or Ultra | Easy | Upload lecture slides, PDFs and your own notes, then ask questions, make flashcards and quizzes, or get an audio overview built only from those sources. Free with a Google account. |
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| Otter.ai | Free; Pro $16.99/mo ($8.33/mo billed annually) | Easy | Records and transcribes a lecture live so you can listen instead of typing. The free Basic plan covers 300 minutes a month. Free; Pro $16.99/mo. |
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| ChatGPT | Free; Go $8/mo; Plus $20/mo; Pro from $100/mo | Easy | Paste messy notes to get a clean outline, flashcards or a quiz. Flashcards work on every plan; uploading a lecture recording needs a paid plan. Free; Go $8/mo. |
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| Quizlet | Free; Plus paid | Easy | Turn finished notes into flashcards and practice tests you can drill on your phone. Free; Plus paid. |
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| Gemini | Free; AI Plus $4.99/mo; AI Pro $19.99/mo; AI Ultra from $99.99/mo | Easy | Upload a short recording (up to 10 minutes on the free plan) or your notes and ask for a summary, next to the Google Docs you already use. Free; AI Plus $4.99/mo. |
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#1Gemini Notebook
Upload lecture slides, PDFs and your own notes, then ask questions, make flashcards and quizzes, or get an audio overview built only from those sources. Free with a Google account.
Google's study and research notebook (formerly NotebookLM): add your notes, PDFs and readings, then get answers, flashcards, quizzes and audio or video overviews grounded only in those sources.
price: Free with a Google account (100 notebooks, 50 sources each); higher limits with Google AI Plus, Pro or Ultradifficulty: Easy
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Visit Gemini Notebook ↗ #2Otter.ai
Records and transcribes a lecture live so you can listen instead of typing. The free Basic plan covers 300 minutes a month. Free; Pro $16.99/mo.
Records and transcribes meetings so you get notes without typing.
price: Free; Pro $16.99/mo ($8.33/mo billed annually)difficulty: Easy
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Visit Otter.ai ↗ #3ChatGPT
Paste messy notes to get a clean outline, flashcards or a quiz. Flashcards work on every plan; uploading a lecture recording needs a paid plan. Free; Go $8/mo.
The all-rounder with GPT-6: ask anything, draft scripts and emails, brainstorm, even make images.
price: Free; Go $8/mo; Plus $20/mo; Pro from $100/modifficulty: Easy
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Visit ChatGPT ↗ #4Quizlet
Turn finished notes into flashcards and practice tests you can drill on your phone. Free; Plus paid.
Make flashcards and AI practice tests from your notes.
price: Free; Plus paiddifficulty: Easy
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Visit Quizlet ↗ #5Gemini
Upload a short recording (up to 10 minutes on the free plan) or your notes and ask for a summary, next to the Google Docs you already use. Free; AI Plus $4.99/mo.
Plugs into Gmail, Docs and YouTube; AI Pro unlocks Gemini 4 Argon and deeper Google AI features.
price: Free; AI Plus $4.99/mo; AI Pro $19.99/mo; AI Ultra from $99.99/modifficulty: Easy
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Visit Gemini ↗ Last checked 2026-10-22. Prices as listed in our data; "Check site" means we haven't verified current pricing. How we pick →
Frequently asked questions
What is the best free AI for lecture notes?
Gemini Notebook (formerly NotebookLM) for studying from slides, readings and notes, plus Otter.ai's free Basic plan (300 minutes a month) when you need a live transcript.
Is NotebookLM still free?
Yes. NotebookLM is now called Gemini Notebook and is free with a Google account, with up to 100 notebooks and 50 sources per notebook. Google AI Plus, Pro and Ultra raise the limits.
Can I record a lecture and let AI take notes?
Ask your instructor first. Many schools require permission to record a class. If recording is not allowed, type rough notes and let AI clean them up afterward.
Should I still take my own notes?
Yes, for the ideas you need to understand. Use AI to fill gaps and quiz yourself, and check anything important against the slides or textbook, because transcripts and summaries can contain mistakes.
Is there a free option?
Gemini Notebook, Otter.ai, ChatGPT, Quizlet, Gemini list a free plan in our data.
Which pick is easiest to start with?
Gemini Notebook, Otter.ai, ChatGPT, Quizlet, Gemini are rated Easy.