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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
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Paper Digest
✓ verifiedFreemium
AI research platform for literature reviews, paper Q&A and daily digests, built for academics wanting cited answers.
140K visits/mo
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Scholar AI
✓ verifiedFreemium
AI research search tool for peer-reviewed papers with citation management, now integrated into Jenni AI's writing workspace.
156K visits/mo
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ResearchRabbit
✓ verifiedFreemium
Free-first literature discovery tool that visually maps citation networks and related papers to speed up systematic reviews.
1.2M visits/mo79 saves
Pricing
No public pricing
No public pricing
Basic: $9.99/month (50 credits/month, 9TB uploads)
Premium: $18.99/month (unlimited GPT & Copilot use)
Credits: $4.99 (25 credits)
Credits: $9.99 (50 credits)
Free: $0/month (unlimited searches across 310M+ articles)
ResearchRabbit+ Annual: $10/month
ResearchRabbit+ Monthly: $12.5/month
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
- ✦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
- ✦Search across millions of peer-reviewed papers
- ✦Agentic AI chat that consults research and uploaded PDFs
- ✦Auto-citation in over 2,600 citation styles
- ✦One-click Zotero/Mendeley library import with metadata and PDFs
- ✦ScholarAI GPT available in the ChatGPT GPT Store
- ✦Developer API for integrating research search
- ✦Citation and author network exploration from a seed paper
- ✦Interactive visualizations of how topics relate over time
- ✦Unlimited library organization and collection sharing
- ✦Zotero integration for syncing saved papers
- ✦Up to 300 seed articles supported on the paid tier
- ✦Alerts for new related research
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
- →staying current with new research
- →generating cited literature reviews
- →reading and understanding papers
- →verifying academic claims
- →tracking topics and conferences
- →Finding and citing academic sources for a paper
- →Chatting with AI about uploaded research PDFs
- →Importing an existing reference library for a new project
- →Building custom apps on top of academic search via API
- →Building a systematic literature review efficiently
- →Discovering research gaps in an unfamiliar field
- →Tracking new publications related to saved papers
- →Visualizing how a body of research has evolved
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