Directory

Compare Agents

Start Over4/5 selected
Grammarly62
NotebookLM67
GitHub Copilot70
OpenAI Codex CLI70
Market62
Trust19
Trend63
Votes95%
380
Watch
800
Votes
70.0k
Views
Market67
Trust19
Trend54
Votes98%
1,900
Watch
4,200
Votes
360.0k
Views
Market70
Trust29
Trend68
Votes97%
7,100
Watch
14,200
Votes
1900.0k
Views
Market70
Trust24
Trend50
Votes98%
2,900
Watch
6,200
Votes
540.0k
Views

Side-by-Side Comparison

FeatureGrammarlyNotebookLMGitHub CopilotOpenAI Codex CLI
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumfreemiumpaidusage based
Deploymentbrowser extensionweb appbrowser extensionapi
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score62677070
Trust Score19192924
Trend Score63546850
Watchers3801,9007,1002,900
Page Views700003600011900001540000
Upvotes8004,20014,2006,200
CountryUSUSUSUS
Founded2,0092,0232,0212,025
Agent Typeassistantassistantcopilotagent
Model Stack
grammarly-llm
gpt-4o
gemini-2.5-pro
gemini-2.5-flash
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
gpt-5
gpt-5-codex
o3
Docs
Open Source
Demo
Websitegrammarly.comnotebooklm.google.comgithub.comopenai.com

Score Factor Breakdown

Factor (weight)GrammarlyNotebookLMGitHub CopilotOpenAI Codex CLI
Trust Score (25%)
19%
19%
29%
24%
Watchers (20%)
76%
100%
100%
100%
Net Votes (20%)
100%
100%
100%
100%
Page Views (15%)
100%
100%
100%
100%
Verification (10%)
13%
13%
25%
13%
Completeness (10%)
55%
55%
55%
80%