kitio.aiPerplexity vs Open Knowledge Maps
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Open Knowledge Maps is completely free, while Perplexity is freemium.
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
- Visual topic maps
- 400M+ research outputs
- 25 output types
- Concept clustering
- Metadata-based results
| Feature | Perplexity | Open Knowledge Maps |
|---|---|---|
| Best for | AI answer engine that searches the web and cites its sources | Nonprofit visual search engine that maps research topics with AI |
| Category | Research & search | Research & search |
| Pricing model | Freemium | Free |
| Starting price | $20/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Perplexity | Open Knowledge Maps |
| Based in | United States | Austria |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Open Knowledge Maps is completely free, while Perplexity is freemium.
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
Open Knowledge Maps
- Free and nonprofit
- Visual overview of a whole topic
- Covers datasets and software too
- Maps are based on metadata only
- AI mapping is still in beta
- Less suited to deep full-text reading
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 Open Knowledge Maps if you want:
- Free and nonprofit
- Visual overview of a whole topic
- Covers datasets and software too
Watch out: maps are based on metadata only.
Perplexity vs Open Knowledge Maps FAQ
What is the difference between Perplexity and Open Knowledge Maps?
Perplexity: AI answer engine that searches the web and cites its sources. Open Knowledge Maps: Nonprofit visual search engine that maps research topics with AI. Both are research & search tools.
Is Perplexity or Open Knowledge Maps cheaper?
Open Knowledge Maps is completely free, while Perplexity is freemium.
Do Perplexity and Open Knowledge Maps have free plans?
Perplexity: Yes. Open Knowledge Maps: Yes, fully free.
Who makes Perplexity?
Perplexity is made by Perplexity, based in United States.
Who makes Open Knowledge Maps?
Open Knowledge Maps is made by Open Knowledge Maps, based in Austria.
Which should I choose, Perplexity or Open Knowledge Maps?
Choose Perplexity if you value every answer shows sources and fast and current. Choose Open Knowledge Maps if you value free and nonprofit and visual overview of a whole topic.