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Start Over4/5 selected
NotebookLM67
GitHub Copilot70
Perplexity AI70
OpenAI Codex CLI70

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Research Agents

Showing 6 agents in this category for fair comparison.

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Market67
Trust19
Trend55
Votes98%
1,900
Watch
4,200
Votes
360.0k
Views
Market70
Trust29
Trend60
Votes97%
7,100
Watch
14,200
Votes
1900.0k
Views
Market70
Trust29
Trend66
Votes98%
4,600
Watch
9,200
Votes
1200.0k
Views
Market70
Trust24
Trend60
Votes98%
2,900
Watch
6,200
Votes
540.0k
Views

Side-by-Side Comparison

FeatureNotebookLMGitHub CopilotPerplexity AIOpenAI Codex CLI
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumpaidfreemiumusage based
Deploymentweb appbrowser extensionweb appapi
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score67707070
Trust Score19292924
Trend Score55606660
Watchers1,9007,1004,6002,900
Page Views36000119000011200000540000
Upvotes4,20014,2009,2006,200
CountryUSUSUSUS
Founded2,0232,0212,0222,025
Agent Typeassistantcopilotassistantagent
Model Stack
gemini-2.5-pro
gemini-2.5-flash
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
sonar-pro
sonar-huge
gpt-5
gpt-5
gpt-5-codex
o3
Docs
Open Source
Demo
Websitenotebooklm.google.comgithub.comperplexity.aiopenai.com

Score Factor Breakdown

Factor (weight)NotebookLMGitHub CopilotPerplexity AIOpenAI Codex CLI
Trust Score (25%)
19%
29%
29%
24%
Watchers (20%)
100%
100%
100%
100%
Net Votes (20%)
100%
100%
100%
100%
Page Views (15%)
100%
100%
100%
100%
Verification (10%)
13%
25%
25%
13%
Completeness (10%)
55%
55%
55%
80%