Grammarly vs Perplexity AI
A detailed comparison of Grammarly and Perplexity AI — features, pricing, pros & cons, and which one is right for you.
Last updated: April 12, 2026
MonthlyAnnual
Pricing Comparison
| Plan | Grammarly | Perplexity AI |
|---|---|---|
| Free | Free | Free |
| Premium | $30/mo | $20/mo |
| Business | Custom | — |
Feature Comparison
| Feature | Grammarly | Perplexity AI |
|---|---|---|
| API access | ||
| Ad copy | ||
| Brand voice | ||
| Free tier | ||
| Image generation | ||
| Long-form writing | ||
| Plagiarism checker | ||
| SEO optimization | ||
| Team collaboration | ||
| AI writing | ||
| Chrome extension | ||
| Citations | ||
| File upload | ||
| Research |
Pros & Cons
Grammarly
Pros
- Industry standard
- Browser extension
- Tone detection
- Plagiarism checker
Cons
- Expensive premium
- Aggressive upselling
- Sometimes over-corrects
Perplexity AI
Pros
- Real-time web search
- Cites sources
- Free to use
- Pro Search for deep research
Cons
- Not a writing tool per se
- Pro needed for best results
- Can hallucinate citations