kitio.aiPerplexity vs ReadPaper
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Perplexity starts at $20/mo and ReadPaper starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Cited answers
- Deep Research reports
- Model choice
- File uploads
- Spaces
- Academic translation
- AI-assisted reading
- Literature search
- Reference management
- AI polishing (beta)
| Feature | Perplexity | ReadPaper |
|---|---|---|
| Best for | AI answer engine that searches the web and cites its sources | AI paper reader with translation, search and reference management |
| Category | Research & search | Research & search |
| Pricing model | Freemium | Freemium |
| Starting price | $20/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Perplexity | ReadPaper |
| Based in | United States | China |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Perplexity starts at $20/mo and ReadPaper starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
5 plans
Free
Free
- Unlimited basic searches
- Limited Pro searches
Pro
$20/mo
- Advanced AI models
- More Pro searches and research
- File uploads
Max
$200/mo
- Highest usage limits
- Early access to new features
Enterprise Pro
$40/mo
- Per seat
- Admin and security controls
- 500 Computer credits/mo
Enterprise Max
$325/mo
- Per seat
- 15,000 Computer credits/mo
- Highest limits
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Perplexity
- Every answer shows sources
- Fast and current
- Choice of top models
- Citations sometimes don't support claims
- Best features need Pro
ReadPaper
- Side-by-side academic translation
- Large citation graph
- Data is private by default
- Interface is mainly in Chinese
- Free library limited to 200 papers
- Some features are still in beta
Which one should you choose?
Choose Perplexity if you want:
- Every answer shows sources
- Fast and current
- Choice of top models
Watch out: citations sometimes don't support claims.
Choose ReadPaper if you want:
- Side-by-side academic translation
- Large citation graph
- Data is private by default
Watch out: interface is mainly in chinese.
Perplexity vs ReadPaper FAQ
What is the difference between Perplexity and ReadPaper?
Perplexity: AI answer engine that searches the web and cites its sources. ReadPaper: AI paper reader with translation, search and reference management. Both are research & search tools.
Is Perplexity or ReadPaper cheaper?
Perplexity starts at $20/mo and ReadPaper starts at See pricing page. Check both pricing pages for current plans.
Do Perplexity and ReadPaper have free plans?
Perplexity: Yes. ReadPaper: Yes.
Who makes Perplexity?
Perplexity is made by Perplexity, based in United States.
Who makes ReadPaper?
ReadPaper is made by ReadPaper, based in China.
Which should I choose, Perplexity or ReadPaper?
Choose Perplexity if you value every answer shows sources and fast and current. Choose ReadPaper if you value side-by-side academic translation and large citation graph.