kitio.aiSemantic Scholar vs Undermind
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Semantic Scholar is completely free, while Undermind 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
- Agentic paper search
- Relevance explanations
- Coverage estimates
- Full-text analysis
- Workspaces
| Feature | Semantic Scholar | Undermind |
|---|---|---|
| Best for | Free AI-powered search engine for scientific literature | Deep academic search agent that reads papers to find the right ones |
| Category | Research & search | Research & search |
| Pricing model | Free | Freemium |
| Starting price | Free | $20/mo |
| Free plan | Yes, fully free | Yes |
| Made by | Allen Institute for AI | Undermind |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Semantic Scholar is completely free, while Undermind is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- Deep searches, chat and reports
- Shared workspaces
- Standard rate limits
Pro
$20/mo
- Latest, most powerful models
- 10x higher usage limits
- Unlimited workspaces and libraries
- $16/mo when billed annually
Team
$15/user/mo, billed annually
- Per user
- Everything in Pro
- Team management
- Priority support
Enterprise
Contact sales
- Increased compute
- Sitewide organizational login
- Admin dashboard
- Custom terms and SLA
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
Undermind
- Finds papers keyword search misses
- Explains each result
- Free plan to try
- Searches take several minutes
- Focused on science fields
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 Undermind if you want:
- Finds papers keyword search misses
- Explains each result
- Free plan to try
Watch out: searches take several minutes.
Semantic Scholar vs Undermind FAQ
What is the difference between Semantic Scholar and Undermind?
Semantic Scholar: Free AI-powered search engine for scientific literature. Undermind: Deep academic search agent that reads papers to find the right ones. Both are research & search tools.
Is Semantic Scholar or Undermind cheaper?
Semantic Scholar is completely free, while Undermind is freemium.
Do Semantic Scholar and Undermind have free plans?
Semantic Scholar: Yes, fully free. Undermind: Yes.
Who makes Semantic Scholar?
Semantic Scholar is made by Allen Institute for AI, based in United States.
Who makes Undermind?
Undermind is made by Undermind, based in United States.
Which should I choose, Semantic Scholar or Undermind?
Choose Semantic Scholar if you value completely free and huge paper index. Choose Undermind if you value finds papers keyword search misses and explains each result.