kitio.aiSemantic Scholar vs Eye2.ai
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Semantic Scholar is completely free, while Eye2.ai is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Paper search
- TLDR summaries
- Research feeds
- Semantic Reader
- Free API
- Multi-model answers
- Agreement view
- Model voting pages
- Event forecast questions
| Feature | Semantic Scholar | Eye2.ai |
|---|---|---|
| Best for | Free AI-powered search engine for scientific literature | Compare answers from several AI models side by side |
| Category | Research & search | Research & search |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | Allen Institute for AI | Eye2.ai |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Semantic Scholar is completely free, while Eye2.ai is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
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
Semantic Scholar
- Completely free
- Huge paper index
- Useful public API
- No chat-style answers
- Full text not always available
Eye2.ai
- See several models at once
- Easy way to spot disagreement
- Public voting pages to browse
- Consensus is not proof of accuracy
- Pricing details are not shown
- Little detail on which models are used
Which one should you choose?
Choose Semantic Scholar if you want:
- Completely free
- Huge paper index
- Useful public API
Watch out: no chat-style answers.
Choose Eye2.ai if you want:
- See several models at once
- Easy way to spot disagreement
- Public voting pages to browse
Watch out: consensus is not proof of accuracy.
Semantic Scholar vs Eye2.ai FAQ
What is the difference between Semantic Scholar and Eye2.ai?
Semantic Scholar: Free AI-powered search engine for scientific literature. Eye2.ai: Compare answers from several AI models side by side. Both are research & search tools.
Is Semantic Scholar or Eye2.ai cheaper?
Semantic Scholar is completely free, while Eye2.ai is freemium.
Do Semantic Scholar and Eye2.ai have free plans?
Semantic Scholar: Yes, fully free. Eye2.ai: Yes.
Who makes Semantic Scholar?
Semantic Scholar is made by Allen Institute for AI, based in United States.
Who makes Eye2.ai?
Eye2.ai is made by Eye2.ai.
Which should I choose, Semantic Scholar or Eye2.ai?
Choose Semantic Scholar if you value completely free and huge paper index. Choose Eye2.ai if you value see several models at once and easy way to spot disagreement.