Directory

Compare Agents

Start Over4/5 selected
Perplexity AI70
Grammarly62
OpenAI Codex CLI70
GitHub Copilot70
Market70
Trust29
Trend18
Votes98%
4,600
Watch
9,200
Votes
1200.0k
Views
Market62
Trust19
Trend50
Votes95%
380
Watch
800
Votes
70.0k
Views
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

Side-by-Side Comparison

FeaturePerplexity AIGrammarlyOpenAI Codex CLIGitHub Copilot
Verification
Reviewed
Reviewed
Reviewed
Reviewed
Pricingfreemiumfreemiumusage basedpaid
Deploymentweb appbrowser extensionapibrowser extension
Review LevelReviewedReviewedReviewedReviewed
Ownershipunclaimedunclaimedunclaimedunclaimed
Market Score70627070
Trust Score29192429
Trend Score18505119
Watchers4,6003802,9007,100
Page Views1200000700005400001900001
Upvotes9,2008006,20014,200
CountryUSUSUSUS
Founded2,0222,0092,0252,021
Agent Typeassistantassistantagentcopilot
Model Stack
sonar-pro
sonar-huge
gpt-5
grammarly-llm
gpt-4o
gpt-5
gpt-5-codex
o3
gpt-5
claude-sonnet-4.6
gemini-2.5-pro
Docs
Open Source
Demo
Websiteperplexity.aigrammarly.comopenai.comgithub.com

Score Factor Breakdown

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