Directory

Compare Agents

Start Over4/5 selected
Grammarly62
GitHub Copilot70
Windsurf70
OpenAI Codex CLI70
Market62
Trust19
Trend37
Votes95%
380
Watch
800
Votes
70.0k
Views
Market70
Trust29
Trend68
Votes97%
7,100
Watch
14,200
Votes
1900.0k
Views
Market70
Trust24
Trend50
Votes97%
2,400
Watch
5,000
Votes
560.0k
Views
Market70
Trust24
Trend56
Votes98%
2,900
Watch
6,200
Votes
540.0k
Views

Side-by-Side Comparison

FeatureGrammarlyGitHub CopilotWindsurfOpenAI Codex CLI
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumpaidfreemiumusage based
Deploymentbrowser extensionbrowser extensionbrowser extensionapi
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score62707070
Trust Score19292424
Trend Score37685056
Watchers3807,1002,4002,900
Page Views700001900001560001540000
Upvotes80014,2005,0006,200
CountryUSUSUSUS
Founded2,0092,0212,0212,025
Agent Typeassistantcopilotcopilotagent
Model Stack
grammarly-llm
gpt-4o
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
claude-sonnet-4.6
gpt-5
gemini-2.5-pro
gpt-5
gpt-5-codex
o3
Docs
Open Source
Demo
Websitegrammarly.comgithub.comwindsurf.comopenai.com

Score Factor Breakdown

Factor (weight)GrammarlyGitHub CopilotWindsurfOpenAI Codex CLI
Trust Score (25%)
19%
29%
24%
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%
13%
13%
Completeness (10%)
55%
55%
80%
80%