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A NotebookLM alternative for keeping sources across AI apps

Short answer

1folder is a NotebookLM alternative only for keeping sources and research files your chosen AI apps can read. It does not answer questions or make audio overviews. Keep Google’s research assistant for those jobs; use 1folder when Claude, ChatGPT or another connected app should work from the same saved material.

Checked on November 11, 2026 against 3 sources.

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Google’s research assistant and 1folder compared on source questions, audio and file handovers. Google’s current NotebookLM help page uses the name Gemini Notebook.

A research assistant and a place to keep research

WhatNotebookLM / Gemini Notebook1folder
Questions about sourcesNotebookLM / Gemini NotebookAnswers based on your sources, with inline citations1folderNo answers generated inside 1folder; ask your connected AI app to read the saved files
Research outputsNotebookLM / Gemini NotebookStudy guides, briefings, audio overviews, mind maps and more1folderKeep sources, notes and tables made by your AI app; no built-in audio generator
Working with several AI appsNotebookLM / Gemini NotebookGoogle’s research assistant works from the notebook’s sources1folderAllow different AI apps to read or update files in a chosen folder

Checked on November 11, 2026, from Google’s Learn about Gemini Notebook help page, reached through its NotebookLM address. Sources below.

Keep it, or switch?

When to keep NotebookLM

  • You want an AI research assistant that answers from uploaded sources with inline citations.
  • Audio overviews or mind maps are the result you came for. 1folder does not generate either.
  • Google’s supported source workflow already fits: its help page lists PDFs, websites, YouTube videos, audio files, Google Docs and Google Slides.

When a shared research folder helps

  • You want Claude to analyze a saved paper and ChatGPT to build on the reviewed notes later.
  • Your research should include original files, a readable evidence table and a final brief at links you can return to.
  • You want each saved revision of the research note attributed to its author, with a way to compare and undo changes.

First, the name and the missing feature

People still search for NotebookLM, but on November 11, 2026 Google’s NotebookLM help address led to “Learn about Gemini Notebook”. That page describes chatting with your sources, with citations, and turning them into study guides, audio overviews and mind maps. Those are good reasons to keep Google’s product.

If you want the same kind of tool inside another AI app, Claude Projects and ChatGPT Projects both let you upload files and ask about them in that app’s chats. 1folder does a smaller job. It keeps PDFs, Word files, pictures, saved links and notes where any connected AI app can read them. It searches the words in PDFs and pictures, but it never answers questions about them.

Moving the files doesn’t move the reasoning. Save the question, the sources, the evidence and what’s still unknown in a note, so the next app has something concrete to check. Treat any app’s citations as claims to check against the original pages.

Build a research folder Claude and ChatGPT can both use

  1. Upload a small, named source set

    For a supplier review, put the two suppliers’ PDFs and your requirements in a Research folder, with clear names like North supplier brief and South supplier brief.

  2. Connect the app doing the reading

    Add https://1folderapp.com/mcp as a custom connector in Claude, or in ChatGPT on Business, Enterprise or Edu. Sign in and allow view and edit for the Research folder.

  3. Ask for evidence before a recommendation

    Ask Claude to read the briefs, name the source behind each claim and leave gaps blank. Then check a few claims against the PDFs yourself.

  4. Have the next app review the same evidence

    Connect ChatGPT to the same folder and ask it to check the table against the PDFs and fix the same table. 1folder shares the files, not Claude’s chats or memory.

Keep the evidence inspectable

  • In Claude

    “Read the source PDFs in my 1folder Research folder. Save Supplier evidence as a table. For every factual claim include its source file and page, or mark it Unknown.”

  • In ChatGPT

    “Read Supplier evidence and the original briefs in 1folder. Check the warranty claims against the sources. Correct the same table and retain the source references.”

Questions

Is 1folder a free NotebookLM alternative?
1folder Free keeps a small research collection: one space, 2 GB and 30 days of versions. It doesn’t answer questions or make audio overviews, so it isn’t a free replacement for those. Your AI app does the reading, on its own plan.
Can I use a NotebookLM alternative in Claude?
The closest thing inside Claude is a Project: upload your sources as project knowledge and ask questions in its chats. Those sources stay inside Claude. If ChatGPT or another app should read them too, keep them in a 1folder folder and connect each app.
Does 1folder answer questions about PDFs?
No. There is no AI inside 1folder. It keeps PDFs and makes their words searchable; Claude, ChatGPT or another connected app reads them and answers.
What about NotebookLM alternative Reddit threads?
Sort the suggestions by job: answers from your sources with citations, audio overviews, or one set of files several AI apps can read. If Google’s outputs are what you use, keep it, and try 1folder only for the files you want to use elsewhere.
Will my notebook stay synced?
No. 1folder doesn’t import or sync a notebook. Upload the sources you want, and ask your AI app to save the findings you want to keep.

Sources

Checked on November 11, 2026.

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