What is Semantic Scholar?
Semantic Scholar is a free, AI-powered research tool for scientific literature, based at Ai2 (the Allen Institute for AI). The homepage describes a search index of about 238 million papers from all fields of science, where users enter keywords or topics to find relevant research.
The tool uses AI to understand the meaning of scientific text rather than only matching keywords, which is intended to help scholars discover relevant work. The site also offers a public API for developers who want to build scholarly apps with paper search, documentation and stable access, and a beta feature called Semantic Reader, an augmented reader for select papers.
Key features
- Search across about 238 million scientific papers from all fields
- AI-driven semantic understanding of scientific literature
- Public API with paper search and documentation
- Semantic Reader augmented reader (beta, select papers)
- Sign-up for updates and account creation
Who is it for
- Researchers and scholars
- Librarians
- Software developers building scholarly apps
- Students
How to get started with Semantic Scholar
- Go to Semantic Scholar and type your topic or paper title
- Browse the results and select publications that interest you
- Create a free account to save and organize the papers you find
- You need to find related scientific publications across many fields
- You want search based on meaning of content, not only keywords
- You need API access to build your own research tools
- You need a Polish-language interface, which is not available
- You expect a fully polished reader, since Semantic Reader is still in beta
Pros and cons
- Free to use
- Very large index covering all fields of science
- Public API available for developers
- Semantic Reader is only in beta and available for select papers
Semantic Scholar pricing
| Plan | Price | Includes |
|---|---|---|
| Darmowy | 0 USD | wyszukiwarka, konto, alerty i API danych bez opłat |
Prices copied from Semantic Scholar pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Semantic Scholar pricing details →
Is Semantic Scholar free?
Yes, there is a free plan. Free AI-powered research tool for searching scientific literature.
Featured in
- Best AI for research - #1
Semantic Scholar alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 SciSpace | 12 USD/mo | ? | Research & science |
 ResearchRabbit | 10 USD/mo | yes | Research & science |
 Scite | 20 USD/mo | trial | Research & science |
 Artificial Analysis | not listed | ? | Research & science |
 Undermind | not listed | yes | Research & science |
 Connected Papers | 3 USD/mo | yes | Research & science |
All alternatives to Semantic Scholar →
Comparisons
- NotebookLM vs Semantic Scholar
- Elicit vs Semantic Scholar
- Semantic Scholar vs Wolfram|Alpha
- SciSpace vs Semantic Scholar
FAQ
What is Semantic Scholar used for?
Free AI-powered search engine for scientific literature, helping researchers find relevant papers across all fields of science.
Is Semantic Scholar free?
Yes, there is a free plan. Free AI-powered research tool for searching scientific literature.
How much does Semantic Scholar cost?
The vendor does not publish prices publicly or requires sign-in.
What are the best Semantic Scholar alternatives?
Closest alternatives: SciSpace, ResearchRabbit, Scite, Artificial Analysis, Undermind.
Data checked October 12, 2026 on the vendor website (semanticscholar.org).