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Elicit
✓ verifiedFreemium
Well-adopted AI research assistant for finding papers, summarizing, and extracting data at scale.
2.1M visits/mo
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Epsilon
✓ verifiedFreemium
AI research search engine summarizing 200M+ papers with citations; site announces shutdown on April 30, 2026.
7.3K saves
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
No public pricing
Core features
- ✦AI-enabled systematic reviews
- ✦Research reports
- ✦Upload your own PDFs
- ✦Quick summaries
- ✦Source quotes
- ✦Question answering
- ✦Cited AI answers over 200M+ papers
- ✦Publication and patent search
- ✦Cross-paper information extraction
- ✦Personal library with paper summaries
- ✦Semantic Scholar dataset with GPT-4 summaries
Use cases
- →Speeding up literature reviews
- →Automating systematic reviews and meta-analyses
- →Learning about new domains
- →Data extraction in rigorous systematic literature reviews
- →Run literature reviews and meta-analyses
- →Find evidence and citations for claims
- →Search publications and patents
- →Summarize and synthesize saved papers
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