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Semantic Scholar logo
Semantic Scholar
✓ verifiedFree

Free AI-powered academic search engine indexing 236M+ papers, for researchers wanting semantic literature discovery and an augmented reader.

7.9M visits/mo13K saves
Elicit logo
Elicit
✓ verifiedFreemium

Well-adopted AI research assistant for finding papers, summarizing, and extracting data at scale.

2.1M visits/mo
txyz.ai logo
txyz.ai
✓ verifiedFreemium

AI research assistant for reading, searching, and writing about academic papers, built for researchers managing a personal library.

110K visits/mo
Paper Digest logo
Paper Digest
✓ verifiedFreemium

AI research platform for literature reviews, paper Q&A and daily digests, built for academics wanting cited answers.

140K visits/mo
Pricing

No public pricing

Basic: Free
Plus: $10 per month, billed annually
Pro: $42 per month, billed annually
Team: $65 per user, per month billed annually
Enterprise: Custom
Free: $0/year (up to 100-page file analysis, 5 writing pages)
Pro: $96/year (up to 100-page analysis, full library access)
Ultra: $288/year (up to 300-page analysis, 3x context window)

No public pricing

Core features
  • AI-powered semantic search across 236M+ papers
  • Semantic Reader for augmented, contextual paper reading
  • Free public API for paper search and metadata
  • Author and topic discovery
  • Citation graph exploration
  • Beta program for new features
  • AI-enabled systematic reviews
  • Research reports
  • Upload your own PDFs
  • Quick summaries
  • Source quotes
  • Question answering
  • AI-assisted search across academic papers
  • Chat-based Q&A over uploaded documents with source citations
  • Personal research library with retention limits by plan
  • AI writing agent for drafting research-based content
  • API access for institutions and businesses
  • Adjustable file upload size (up to 300 pages on top tier)
  • literature review generator with per-sentence citations
  • AI reader for PDFs
  • AI writer with citations
  • academic claim verification
  • question answering over literature
  • daily, conference and best-paper digests
  • cross-source search of papers, patents and grants
Use cases
  • Researchers searching scientific literature across disciplines
  • Developers building applications on top of scholarly data via the API
  • Students exploring citation networks for a topic
  • Librarians and academics needing free literature discovery tools
  • Speeding up literature reviews
  • Automating systematic reviews and meta-analyses
  • Learning about new domains
  • Data extraction in rigorous systematic literature reviews
  • Finding papers relevant to a research topic
  • Getting quick summaries and answers from long PDFs
  • Managing and revisiting a personal library of research papers
  • Drafting literature-informed writing with AI assistance
  • Integrating paper search/analysis into an institution's own tools via API
  • staying current with new research
  • generating cited literature reviews
  • reading and understanding papers
  • verifying academic claims
  • tracking topics and conferences
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