Directory

Compare Agents

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

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Research Agents

Market67
Trust19
Trend56
Votes98%
1,900
Watch
4,200
Votes
360.0k
Views
Market70
Trust24
Trend52
Votes98%
2,900
Watch
6,200
Votes
540.0k
Views
Market70
Trust29
Trend32
Votes97%
7,100
Watch
14,200
Votes
1900.0k
Views
Market70
Trust29
Trend27
Votes98%
4,600
Watch
9,200
Votes
1200.0k
Views

Side-by-Side Comparison

FeatureNotebookLMOpenAI Codex CLIGitHub CopilotPerplexity AI
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumusage basedpaidfreemium
Deploymentweb appapibrowser extensionweb app
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score67707070
Trust Score19242929
Trend Score56523227
Watchers1,9002,9007,1004,600
Page Views36000154000019000011200000
Upvotes4,2006,20014,2009,200
CountryUSUSUSUS
Founded2,0232,0252,0212,022
Agent Typeassistantagentcopilotassistant
Model Stack
gemini-2.5-pro
gemini-2.5-flash
gpt-5
gpt-5-codex
o3
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
sonar-pro
sonar-huge
gpt-5
Docs
Open Source
Demo
Websitenotebooklm.google.comopenai.comgithub.comperplexity.ai

Score Factor Breakdown

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