SOFTWARE COMPARISON

Grammarly vs Perplexity Comet: Which Is Better in 2026?

Compare pricing, free plans, strengths and weaknesses to decide which tool fits your workflow better.

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Grammarly

AI writing assistant for grammar, rewriting, tone and generative drafting

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Comparison scope

Compare the requirements of your workflow

This page places recorded product information side by side. It does not establish a winner or show results from a matched product test. Check the features, limits and current provider terms for the work you need to complete.

Quick comparison

Feature
Grammarly
Perplexity Comet
Pricing
Freemium subscription
Freemium via Perplexity plans
Starting price
$12/member/month Pro, billed $144 annually; $30 monthly
$0 Standard; paid Perplexity plans expand Comet
Free plan
Yes
Yes
Best for
Reviewing suggestions within supported writing applications
Knowledge workers who want an AI assistant embedded directly into everyday web browsing
Pricing
GrammarlyFreemium subscription
Perplexity CometFreemium via Perplexity plans
Starting price
Grammarly$12/member/month Pro, billed $144 annually; $30 monthly
Perplexity Comet$0 Standard; paid Perplexity plans expand Comet
Free plan
GrammarlyYes
Perplexity CometYes
Best for
GrammarlyReviewing suggestions within supported writing applications
Perplexity CometKnowledge workers who want an AI assistant embedded directly into everyday web browsing

Grammarly pros

  • Suggestions can be reviewed or dismissed in supported applications
  • Pro lists sentence rewriting and tone controls

Grammarly cons

  • Annual equivalent requires an annual payment
  • Feature coverage must be checked in the intended application
  • Review rewritten facts and commitments

Perplexity Comet pros

  • AI assistant integrated into the browser
  • Works with normal Chromium-style browsing
  • Free Perplexity tier provides an entry point

Perplexity Comet cons

  • Advanced Comet Assistant usage is plan-limited
  • Product capabilities and limits are evolving quickly

Choose Grammarly if...

Reviewing suggestions within supported writing applications

Explore Grammarly →

Choose Perplexity Comet if...

Knowledge workers who want an AI assistant embedded directly into everyday web browsing

Explore Perplexity Comet →