Liminary records 12,246 monthly visits with -30.4% month-over-month growth and Freemium pricing. Semantic Scholar records 8,198,672 monthly visits with +5.8% growth and Free pricing.
An AI memory layer that resurfaces your research when it matters
A free, AI-powered academic search engine for 240M+ papers across every scientific field
| Dimension / Metric | | |
|---|---|---|
| Official Domain | liminary.io | semanticscholar.org |
| Pricing Model | Freemium | Free |
| Monthly Visits | 12.25K (12,246) | 8.2M (8,198,672) |
| MoM Traffic Delta | -5.34K (-30.4%) | +450.65K (+5.8%) |
| Primary Market & Share | 🇺🇸 United States (59.1%) | 🇺🇸 United States (22.9%) |
| Direct Visits / mo | 4.87K | 1.88M |
| User Rating | 4.1 | 4.8 |
| Supported Platforms | Website | Website |
An AI memory layer that resurfaces your research when it matters
Capture web pages, PDFs, videos, reports and LLM chats while you browse, then annotate them with your own notes and context.
Instead of waiting for a search, Liminary surfaces the relevant saved material while you write and inside meetings.
A meeting companion that pulls in the right information at the right moment, then saves the summary, full transcript and your notes for later recall.
Every answer points back to where it came from, internal or external, so you can verify claims rather than trust a black box.
A free, AI-powered academic search engine for 240M+ papers across every scientific field
Search 241 million-plus publications from every scientific field using natural-language queries that match meaning rather than exact keywords.
Each indexed paper gets a one-sentence machine-generated TLDR so you can triage results before committing to reading the full text.
An augmented PDF reader that highlights citations, definitions, equations and figures inline, and shows which later papers cited the passage you are reading.
See how a paper was cited, whether citations were influential, and which references shaped the work — useful for literature reviews and citation chasing.
SpecialistBroader real-time web search capabilities with academic filters, but less specialized for deep bibliographic citation analysis than Semantic Scholar.
SpecialistBroader real-time web search capabilities with academic filters, but less specialized for deep bibliographic citation analysis than Semantic Scholar.
Share and access study materials worldwide — with AI study tools built in
Share and access study materials worldwide — with AI study tools built in
Synthesizes direct evidence-based answers from scientific papers, but has a less comprehensive raw database than Semantic Scholar.
Synthesizes direct evidence-based answers from scientific papers, but has a less comprehensive raw database than Semantic Scholar.
Offers an immersive AI reading and PDF analysis workspace, but is less focused on pure bibliographic search.
Offers an immersive AI reading and PDF analysis workspace, but is less focused on pure bibliographic search.
Excels at automated systematic review data extraction and evidence synthesis, but indexes a narrower slice of literature.
Excels at automated systematic review data extraction and evidence synthesis, but indexes a narrower slice of literature.
A proactive AI reading lens for papers, videos, and web pages
A proactive AI reading lens for papers, videos, and web pages
SpecialistProvides advanced Smart Citations showing how papers support or dispute each other, but has a smaller overall index.
SpecialistProvides advanced Smart Citations showing how papers support or dispute each other, but has a smaller overall index.
SpecialistFeatures excellent visual citation collections and literature tracking recommendations, but lacks inline paper summarization features.
SpecialistFeatures excellent visual citation collections and literature tracking recommendations, but lacks inline paper summarization features.
SpecialistOffers superior visual graph mapping of academic paper connections, but lacks traditional keyword search and full-text reading tools.
SpecialistOffers superior visual graph mapping of academic paper connections, but lacks traditional keyword search and full-text reading tools.
Translate, summarize, and understand documents in 154 languages without losing the layout
Translate, summarize, and understand documents in 154 languages without losing the layout
AI-native workspace for literature reviews and auditable systematic reviews
AI-native workspace for literature reviews and auditable systematic reviews
Turn research papers and articles into interactive summary flashcards
Turn research papers and articles into interactive summary flashcards
