Directory

Compare Agents

Start Over4/5 selected
Grammarly62
GitHub Copilot70
Perplexity AI70
OpenAI Codex CLI70
Market62
Trust19
Trend50
Votes95%
380
Watch
800
Votes
70.0k
Views
Market70
Trust29
Trend19
Votes97%
7,100
Watch
14,200
Votes
1900.0k
Views
Market70
Trust29
Trend18
Votes98%
4,600
Watch
9,200
Votes
1200.0k
Views
Market70
Trust24
Trend51
Votes98%
2,900
Watch
6,200
Votes
540.0k
Views

Side-by-Side Comparison

FeatureGrammarlyGitHub CopilotPerplexity AIOpenAI Codex CLI
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumpaidfreemiumusage based
Deploymentbrowser extensionbrowser extensionweb appapi
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score62707070
Trust Score19292924
Trend Score50191851
Watchers3807,1004,6002,900
Page Views7000019000011200000540000
Upvotes80014,2009,2006,200
CountryUSUSUSUS
Founded2,0092,0212,0222,025
Agent Typeassistantcopilotassistantagent
Model Stack
grammarly-llm
gpt-4o
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
Websitegrammarly.comgithub.comperplexity.aiopenai.com

Score Factor Breakdown

Factor (weight)GrammarlyGitHub CopilotPerplexity AIOpenAI Codex CLI
Trust Score (25%)
19%
29%
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%
25%
25%
13%
Completeness (10%)
55%
55%
55%
80%