Directory

Compare Agents

Start Over3/5 selected
OpenAI Codex CLI70
GitHub Copilot70
Grammarly62
Market70
Trust24
Trend51
Votes98%
2,900
Watch
6,200
Votes
540.0k
Views
Market70
Trust29
Trend19
Votes97%
7,100
Watch
14,200
Votes
1900.0k
Views
Market62
Trust19
Trend50
Votes95%
380
Watch
800
Votes
70.0k
Views

Side-by-Side Comparison

FeatureOpenAI Codex CLIGitHub CopilotGrammarly
Verification
Reviewed
Reviewed
Reviewed
Pricingusage basedpaidfreemium
Deploymentapibrowser extensionbrowser extension
Review LevelReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimed
Market Score707062
Trust Score242919
Trend Score511950
Watchers2,9007,100380
Page Views540000190000170000
Upvotes6,20014,200800
CountryUSUSUS
Founded2,0252,0212,009
Agent Typeagentcopilotassistant
Model Stack
gpt-5
gpt-5-codex
o3
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
grammarly-llm
gpt-4o
Docs
Open Source
Demo
Websiteopenai.comgithub.comgrammarly.com

Score Factor Breakdown

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