GrammarlyFreemium
AI writing assistant for grammar, clarity, tone, and generative drafts across every app you write in.
AI / LLM comparison
Grammarly vs Perplexity
Pricing, pros, cons, and ideal use cases — side by side.
PerplexityFreemium
AI-powered answer engine that searches the live web and cites its sources — the ChatGPT alternative for research.
At a glance
| Grammarly | Perplexity | |
|---|---|---|
| Pricing | FreemiumFree plan available. Premium $12/month. Business from $15/seat/month. | FreemiumFree tier available. Pro $20/month. Enterprise plans available. |
| Category | AI / LLM | AI / LLM |
| Ideal for | Any SMBLaw FirmsAgenciesCustomer Support TeamsProfessional Services | Any SMBLaw FirmsAgenciesConsultantsRecruiters |
Pros & cons
Grammarly
Pros
- Works in every major app
- Strong brand voice features
- Tone detection is excellent
- Good generative AI drafts
Cons
- Browser extension can slow pages
- Plagiarism check is weaker than dedicated tools
- Advanced suggestions need premium
Perplexity
Pros
- Cites every source
- Access to multiple frontier models
- Excellent for research
- Follow-up threads keep context
Cons
- Sometimes cites low-quality sources
- Less conversational than ChatGPT
- Not built for long-form creation
Which should you choose?
Both Grammarly and Perplexity are solid options in this category — the best pick depends on your existing stack, budget, and team experience.