Directory

Compare Agents

Start Over4/5 selected
OpenAI Codex CLI70
Grammarly62
Perplexity AI70
GitHub Copilot70
Market70
Trust24
Trend51
Votes98%
2,900
Watch
6,200
Votes
540.0k
Views
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

Side-by-Side Comparison

FeatureOpenAI Codex CLIGrammarlyPerplexity AIGitHub Copilot
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingusage basedfreemiumfreemiumpaid
Deploymentapibrowser extensionweb appbrowser extension
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score70627070
Trust Score24192929
Trend Score51501819
Watchers2,9003804,6007,100
Page Views5400007000012000001900001
Upvotes6,2008009,20014,200
CountryUSUSUSUS
Founded2,0252,0092,0222,021
Agent Typeagentassistantassistantcopilot
Model Stack
gpt-5
gpt-5-codex
o3
grammarly-llm
gpt-4o
sonar-pro
sonar-huge
gpt-5
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
Docs
Open Source
Demo
Websiteopenai.comgrammarly.comperplexity.aigithub.com

Score Factor Breakdown

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