Directory

Compare Agents

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

Side-by-Side Comparison

FeatureGrammarlyPerplexity AIGitHub CopilotOpenAI Codex CLI
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumfreemiumpaidusage based
Deploymentbrowser extensionweb appbrowser extensionapi
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score62707070
Trust Score19292924
Trend Score50181951
Watchers3804,6007,1002,900
Page Views7000012000001900001540000
Upvotes8009,20014,2006,200
CountryUSUSUSUS
Founded2,0092,0222,0212,025
Agent Typeassistantassistantcopilotagent
Model Stack
grammarly-llm
gpt-4o
sonar-pro
sonar-huge
gpt-5
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
gpt-5
gpt-5-codex
o3
Docs
Open Source
Demo
Websitegrammarly.comperplexity.aigithub.comopenai.com

Score Factor Breakdown

Factor (weight)GrammarlyPerplexity AIGitHub CopilotOpenAI 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%