Brandwave

NotebookLM vs Scholarcy:Which is more popular?

In September 2026, NotebookLM had more branded searches than Scholarcy among AI summarisation tools worldwide. NotebookLM had about 24.5 million branded searches, while Scholarcy had 14,800. NotebookLM made up 81.9% of all AI summarisation tool searches we track, and Scholarcy accounted for 0.05%. When we asked ChatGPT and Google AI Overviews about AI summarisation tools, NotebookLM appeared in three of the five answers and Scholarcy in two. NotebookLM and Scholarcy were each mentioned first in one of the two answers that named either.

Among AI summarisation tools worldwide in September 2026

Who do people search for more?

NotebookLM, about 1655 searches for every 1 for Scholarcy

NotebookLM 24.5M searchesScholarcy 14.8K searches

Who does AI mention more?

NotebookLM, mentioned in 3 of 5 answers, Scholarcy in 2

NotebookLM in 3 of 5Scholarcy in 2 of 5

Who does AI recommend more?

Each is named first in 1 of 2 answers.

NotebookLM first in 1Scholarcy first in 1

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Top AI summarisation tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, NotebookLM was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Scholarcy was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. NotebookLM and Scholarcy were each listed first in one of the two answers that named either.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. TLDR This1st
  2. QuillBot2nd
  3. Scholarcy3rd
  4. NotebookLM4th
  5. Otter–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • NotebookLM3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • QuillBot2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Scholarcy2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • TLDR This2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Otter0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about AI summarisation tools

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is NotebookLM or Scholarcy more popular in search?

This chart shows how often people search Google for NotebookLM and Scholarcy by name. Each line represents a brand's share of searches for all five AI summarisation tools we track, month by month, from English-language searches worldwide.

NotebookLM and Scholarcy among AI summarisation tools worldwide, by month

Share of searches by month for NotebookLM, Scholarcy. The figures are in the table below the chart.

View monthly share of searches table
MonthNotebookLMQuillBotOtterScholarcyTLDR This
Oct 202554.9%42.2%2.6%0.19%0.02%
Nov 202558.9%38.9%2%0.14%0.02%
Dec 202571.4%26.8%1.7%0.12%0.02%
Jan 202675.1%23%1.8%0.1%0.01%
Feb 202675.1%23%1.8%0.1%0.01%
Mar 202675.2%23%1.8%0.1%0.01%
Apr 202681.6%16.7%1.6%0.07%0.01%
May 202681.9%16.8%1.3%0.06%<0.01%
Jun 202681.9%16.7%1.3%0.05%<0.01%
Jul 202681.2%17.2%1.6%0.04%<0.01%
Aug 202678.7%19.7%1.5%0.04%<0.01%
Sep 202681.9%16.7%1.3%0.05%<0.01%

How has the NotebookLM and Scholarcy comparison changed over the last 12 months?

3 findings
  • NotebookLM was ahead of Scholarcy in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, NotebookLM’s share of searches among AI summarisation tools worldwide moved from 54.9% to 81.9%, and its estimated monthly branded searches moved from 11.9M to 24.5M.
  • Across the 12 months ending September 2026, Scholarcy’s share of searches among AI summarisation tools worldwide moved from 0.19% to 0.05%, and its estimated monthly branded searches moved from 40.5K to 14.8K.

How did search popularity change for AI summarisation tools worldwide in September 2026?

2 changes

  1. In September 2026, NotebookLM gained share of searches among AI summarisation tools worldwide, from 78.7% to 81.9%.

  2. Estimated monthly branded searches for Scholarcy worldwide fell 63.5% over 12 measured months, from 40.5K to 14.8K in September 2026.

How are branded searches counted?

3 search terms

Brandwave collects information about searches that people make online using NotebookLM’s and Scholarcy’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

NotebookLM

2 branded search terms

  • notebook lm
  • notebooklm

Scholarcy

1 branded search term

  • scholarcy

How the Brand Demand Index is measured

Other head-to-heads among AI summarisation tools

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