Brandwave

Perplexity vs ResearchRabbit:Which is more popular?

In September 2026, Perplexity had more branded searches than ResearchRabbit among AI research tools worldwide. Perplexity had about 13.4 million branded searches, while ResearchRabbit had 27,100. Perplexity made up 33.6% of all AI research tool searches we track, and ResearchRabbit accounted for 0.07%. When we asked ChatGPT and Google AI Overviews about AI research tools, Perplexity appeared in four of the five answers and ResearchRabbit in two. Perplexity was mentioned before ResearchRabbit in three out of four answers that named either.

Among AI research tools worldwide in September 2026

Who do people search for more?

Perplexity, about 496 searches for every 1 for ResearchRabbit

Perplexity 13.4M searchesResearchRabbit 27.1K searches

Who does AI mention more?

Perplexity, mentioned in 4 of 5 answers, ResearchRabbit in 2

Perplexity in 4 of 5ResearchRabbit in 2 of 5

Who does AI recommend more?

Perplexity, named ahead of ResearchRabbit in 3 of 4 answers

Perplexity first in 3ResearchRabbit first in 1

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Top AI research tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Perplexity was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. ResearchRabbit was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Perplexity was listed before ResearchRabbit in three out of four answers that named either.

Most recommended by AI

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

  1. Elicit1st
  2. Consensus2nd
  3. Perplexity3rd
  4. NotebookLM4th
  5. Scite5th
  6. ResearchRabbit6th

Mentioned by AI

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

  • Consensus5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Elicit5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • NotebookLM4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Perplexity4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Scite3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • ResearchRabbit2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers

See every answer about AI research tools

5 answers

Brands are shown in the order each answer named them. The survey took place in the United States on October 19, 2026.

Is Perplexity or ResearchRabbit more popular in search?

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

Perplexity and ResearchRabbit among AI research tools worldwide, by month

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

View monthly share of searches table
MonthNotebookLMPerplexityConsensusElicitSciteResearchRabbit
Oct 202523.1%73.4%2.2%1.1%0.12%0.06%
Nov 202530.7%65.4%2.6%1%0.13%0.07%
Dec 202542.3%54%2.5%0.95%0.13%0.07%
Jan 202649.9%46%2.8%1.1%0.12%0.07%
Feb 202650.2%45.9%2.6%1.1%0.12%0.07%
Mar 202653.7%42.1%2.8%1.2%0.11%0.07%
Apr 202658.6%37.3%2.8%1.1%0.1%0.06%
May 202663%32.9%3.1%0.95%0.09%0.06%
Jun 202662.8%32.8%3.3%0.94%0.08%0.07%
Jul 202660.6%34.8%3.3%1.2%0.08%0.07%
Aug 202661.1%33.9%3.6%1.1%0.1%0.07%
Sep 202661.2%33.6%3.9%1.1%0.12%0.07%

How has the Perplexity and ResearchRabbit comparison changed over the last 12 months?

3 findings
  • Perplexity was ahead of ResearchRabbit in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Perplexity’s share of searches among AI research tools worldwide moved from 73.4% to 33.6%, and its estimated monthly branded searches moved from 37.7M to 13.4M.
  • Across the 12 months ending September 2026, ResearchRabbit’s share of searches among AI research tools worldwide moved from 0.06% to 0.07%, and its estimated monthly branded searches moved from 33.1K to 27.1K.

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

2 changes

  1. Estimated monthly branded searches for Perplexity worldwide fell 64.4% over 12 measured months, from 37.7M to 13.4M in September 2026.

  2. Estimated monthly branded searches for ResearchRabbit worldwide fell 18.1% over 12 measured months, from 33.1K to 27.1K in September 2026.

How are branded searches counted?

17 search terms

Brandwave collects information about searches that people make online using Perplexity’s and ResearchRabbit’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.

Perplexity

16 branded search terms

  • comet browser
  • comet perplexity
  • perplexity
  • perplexity ai
  • perplexity ai app
  • perplexity ai search
  • perplexity app
  • perplexity browser
  • perplexity comet
  • perplexity finance
  • perplexity ia
  • perplexity labs
  • perplexity max
  • perplexity pro
  • perplexity search
  • perplexity.ai

ResearchRabbit

1 branded search term

  • researchrabbit

How the Brand Demand Index is measured

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