kitio.aiSemantic Scholar vs Ai2 Asta
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Semantic Scholar starts at Free and Ai2 Asta starts at Free. 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
- Paper search
- TLDR summaries
- Research feeds
- Semantic Reader
- Free API
- Paper finding agent
- Literature summaries
- Data analysis
- Semantic Scholar corpus
- MCP access
| Feature | Semantic Scholar | Ai2 Asta |
|---|---|---|
| Best for | Free AI-powered search engine for scientific literature | Free agentic research assistant for scientists from Ai2 |
| Category | Research & search | Research & search |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | Allen Institute for AI | Allen Institute for AI |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Semantic Scholar starts at Free and Ai2 Asta starts at Free. Check both pricing pages for current plans.
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
Ai2 Asta
- Free and nonprofit-backed
- Large scientific corpus
- Transparent benchmarks
- Still evolving quickly
- Interface less polished than paid tools
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 Ai2 Asta if you want:
- Free and nonprofit-backed
- Large scientific corpus
- Transparent benchmarks
Watch out: still evolving quickly.
Semantic Scholar vs Ai2 Asta FAQ
What is the difference between Semantic Scholar and Ai2 Asta?
Semantic Scholar: Free AI-powered search engine for scientific literature. Ai2 Asta: Free agentic research assistant for scientists from Ai2. Both are research & search tools.
Is Semantic Scholar or Ai2 Asta cheaper?
Semantic Scholar starts at Free and Ai2 Asta starts at Free. Check both pricing pages for current plans.
Do Semantic Scholar and Ai2 Asta have free plans?
Semantic Scholar: Yes, fully free. Ai2 Asta: Yes, fully free.
Who makes Semantic Scholar?
Semantic Scholar is made by Allen Institute for AI, based in United States.
Who makes Ai2 Asta?
Ai2 Asta is made by Allen Institute for AI, based in United States.
Which should I choose, Semantic Scholar or Ai2 Asta?
Choose Semantic Scholar if you value completely free and huge paper index. Choose Ai2 Asta if you value free and nonprofit-backed and large scientific corpus.