Directory

Compare Agents

Start Over4/5 selected
Grammarly62
Microsoft Copilot70
OpenAI Codex CLI70
GitHub Copilot70
Market62
Trust19
Trend59
Votes95%
380
Watch
800
Votes
70.0k
Views
Market70
Trust29
Trend32
Votes96%
3,500
Watch
7,200
Votes
850.0k
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

Side-by-Side Comparison

FeatureGrammarlyMicrosoft CopilotOpenAI Codex CLIGitHub Copilot
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumfreemiumusage basedpaid
Deploymentbrowser extensionweb appapibrowser extension
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score62707070
Trust Score19292429
Trend Score59325232
Watchers3803,5002,9007,100
Page Views700008500005400001900001
Upvotes8007,2006,20014,200
CountryUSUSUSUS
Founded2,0092,0232,0252,021
Agent Typeassistantcopilotagentcopilot
Model Stack
grammarly-llm
gpt-4o
gpt-5
gpt-4o
gpt-5
gpt-5-codex
o3
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
Docs
Open Source
Demo
Websitegrammarly.comcopilot.microsoft.comopenai.comgithub.com

Score Factor Breakdown

Factor (weight)GrammarlyMicrosoft CopilotOpenAI Codex CLIGitHub Copilot
Trust Score (25%)
19%
29%
24%
29%
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%
25%
Completeness (10%)
55%
55%
80%
55%