Semantic Scholar

Fully free AI-powered search across 237M+ scientific papers

What Semantic Scholar does

  • Fully free AI-powered search across 237M+ scientific papers
  • Semantic Reader augmented-reading tool for papers
  • Free public API used by many other research tools

Semantic Scholar — straight answers

What is Semantic Scholar?

Semantic Scholar is listed under Academic Research, in the Research & Learning category on Flocci AI Tools. Fully free AI-powered search across 237M+ scientific papers. It is free, with no paid plan attached, and it lives at semanticscholar.org.

Is Semantic Scholar free?

Semantic Scholar is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 115 entries on Flocci AI Tools with no upgrade path built in.

What can Semantic Scholar do?

Semantic Scholar does 3 things the catalog singles out: Fully free ai-powered search across 237m+ scientific papers; semantic reader augmented-reading tool for papers; free public api used by many other research tools.

What is the best free alternative to Semantic Scholar?

Ai2 Paper Finder (Asta) is the closest free alternative: it sits in the same Academic Research sub-category and is free. alphaXiv, ResearchRabbit and Connected Papers also start free. The full list is on the alternatives page.

See the full list →

Semantic Scholar alternatives

Compare all alternatives →

Elicit

Academic Research
freemium
  • Find and summarize research papers
  • Extract data across studies
  • Systematic-review workflows
  • Free monthly credits

Consensus

Academic Research
freemium
  • Answers grounded in peer-reviewed papers
  • Consensus Meter across studies
  • Study snapshots and quality
  • Free searches

SciSpace

Academic Research
freemium
  • Explain and chat with any paper
  • Literature review and comparison tables
  • Paraphrase and citation help
  • Free tier

Undermind

Academic Research
freemium
  • Exhaustive, agentic literature search
  • Finds hard-to-surface papers
  • Explains why each result matters
  • Free searches to start

ResearchRabbit

Academic Research
free
  • Visual citation-network mapping across 310M+ papers
  • Zotero integration for reference management
  • Used by 1M+ researchers at Harvard/Stanford/MIT/Oxford, free to sign up

Connected Papers

Academic Research
freemium
  • Visual graph of related papers built from co-citation analysis
  • Free graphs per month before requiring paid Academic/Pro plan
  • Prior-work and derivative-work graph views

Head-to-head comparisons