NotebookLM alternative
A NotebookLM alternative built for understanding
NotebookLM, renamed Gemini Notebook by Google in July 2026, is excellent at breadth and artifacts: many sources, fast, with audio overviews, podcasts, and flashcards creation. But if your real goal is to master a book, paper, or thesis, breadth is not what you are looking for. Depth is. That’s what Meletium is built for.
TLDR; Use NotebookLM when you need to skim several documents, listen to a podcast, or create a video from your document. Use Meletium when you have a text you need to truly understand, and you want every answer to cite the exact page number printed, analytically solve exercises with page references to the theory used, view a map of how the concepts connect, and draw explanatory diagrams with the tool.
Meletium is not intended to be a replacement of NotebookLM but rather an alternative proposition for reading and understanding texts with AI, where the book and its reader are the main characters and not the underlying LLM.
We put this to the test in an in-depth comparison: AI tools for studying compared — ChatGPT, Claude, Gemini Notebook and Meletium, twenty-five questions on a 972-page textbook, timed and checked against the book's own solutions.
Meletium vs. NotebookLM
Capability Meletium NotebookLM
Upload-your-own-PDF Q&A Yes Yes
Document view next to your chat Yes No. Only the passage a citation points to
Page-precise references Yes. Every answer lands on the exact page No. Tool calling to look for pages
Average response time 20.5s (slowest answer 45s) 56.3s (slowest answer 228s)
Parsing time, paid once per book 1 page per second 5 pages per second
Accuracy 100% 88%
Multi-turn conversation Yes No
Printable LaTeX exam PDFs + solutions Yes No
Per-book knowledge graph Yes (navigable book → chapter → concept) Mind maps only
Editable vector diagrams Yes (math-grade, collaborative) No. Polished infographics on request
Math / formula typesetting Textbook-grade, everywhere Textbook-grade, everywhere
Answers stay faithful to the source Yes. No general-knowledge filler Source-grounded, but can lose the page
Audio & video overviews No Yes
Best for Deeply understanding books Skimming many sources fast, get summaries
Feature data current as of August 2026. The speed and accuracy figures are measured, from the in-depth comparison where both tools answered the same 25 questions on the same 972-page textbook. NotebookLM, now Gemini Notebook, is a Google product; Meletium is not affiliated with Google.
Five things you get in Meletium
Page-precise references, never approximate
Click any page link and land on the exact page it came from. Glaux grounds every response in the document’s own pagination. No hallucinated references, no endless agentic tool calling to locate a page. On terminology-heavy material with theorems, definitions and formulas, that precision is the difference between trusting an answer and verifying it.
That difference is measurable. Asked to solve a numbered exercise on a given page, NotebookLM reported around fifty agentic steps over roughly two minutes and still did not find it. Two other questions cost it 228 and 220 seconds. Meletium answered all 25 questions correctly, its slowest in 45 seconds.
Printable practice exams, typeset like a textbook
Generate a practice exam straight from the book and properly typeset in LaTeX, with a separate worked-solutions key. Not a wall of chat text: a clean PDF ready to print and share. Every question and solution stays firmly grounded in your book.
A knowledge graph of the whole book
Meletium maps the book into a navigable graph with chapters, sections, and the concepts that link them. Instead of a flat chat history, you get the structure of what you’re reading, so you can see how an idea in chapter 2 connects to a result in chapter 7.
A board you and Glaux draw on together
Some things text can’t explain. The Board is a shared canvas where Glaux draws editable, math-grade vector diagrams like a blackboard in a lecture. A geometric proof, the graph of a function, a flowchart of an algorithm, a distribution, all editable by you and related to the context.
The book itself, not an extract of it
In NotebookLM the book is never shown as a browsable document. You see the passage a citation happens to point at, rendered as extracted text, and in our testing that extraction was visibly damaged: every “ti” pair was dropped, so Applications of the Derivative came through as Applica ons of the Deriva ve. In Meletium the actual typeset page is on screen, and you can read, browse and highlight it as you would the printed book.
NotebookLM alternative — common questions
Is Meletium a good NotebookLM alternative? +
Meletium is the better choice when your goal is to deeply understand one book, paper, or thesis rather than skim many sources. It grounds every answer in the exact page, generates printable LaTeX exams with worked solutions, builds a navigable knowledge graph of the book, and draws editable math diagrams with you. NotebookLM remains stronger for audio overviews, multi-document research, and its free 1M-token context.
What can Meletium do that NotebookLM cannot? +
Faster conversation and more accurate answers. Beyond that: page-precise citations that open the exact page, publication-quality LaTeX exam PDFs with a separate answer key, a Neo4j-backed knowledge graph of the book, and a collaborative whiteboard where you and Glaux draw editable, math-grade vector diagrams. NotebookLM offers none of these.
When is NotebookLM the better tool? +
When you need audio or video overviews, flashcard and summary generation, want to work across many documents at once, or need long-running deep research. NotebookLM is best suited for breadth. Meletium is built for depth and deep understanding.
Is NotebookLM or Meletium faster? +
Meletium. Across 25 questions on the same 972-page textbook, Meletium averaged 20.5 seconds per answer against NotebookLM’s 56.3 seconds, and was the more consistent of the two: its slowest answer took 45 seconds, while NotebookLM’s slowest took 228 seconds. NotebookLM is far quicker to ingest a document in the first place, taking about 3 minutes to parse a one thousand page book to Meletium’s 17, but that cost is paid once, whereas response time is paid on every question.
Is NotebookLM or Meletium more accurate? +
Meletium. Across the same 25 questions on the same 972-page textbook, each with an answer that could be checked against the book itself, Meletium answered all 25 correctly and NotebookLM answered 22. All three of NotebookLM’s wrong answers came from failing to locate the right page: on two it hallucinated a different problem statement, and on the third it reported around fifty agentic steps over roughly two minutes and still did not find the exercise. That is the failure mode to watch for in any tool that searches a document on demand rather than indexing its structure up front.
How much does Meletium cost? +
Meletium is free during beta, within usage caps. You can read any book, paper, or thesis deeply with Glaux at no cost while the beta runs.
Comparing something else? See how Meletium stacks up as a ChatGPT alternative for studying.
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