Research 2 Tools Ranked

Best Research AI Tools

The top 2 research tools in 2026, ranked by our data-driven Engine Score. Updated continuously as new tools launch and scores change.

Rankings by Engine Score
#1

NotebookLM

7/10

An AI-powered research and note-taking assistant that helps users analyze and generate content from their uploaded sources with citations.

$4.99/mo Google View Profile →
#2

Perplexity Deep Research

6/10

Perplexity AI is an AI-powered conversational search engine that provides direct, cited answers to user queries by synthesizing information from…

$20.00/mo Perplexity AI, Inc. View Profile →
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NotebookLM vs Perplexity Deep Research

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