Lex records 24,323 monthly visits with -57.1% month-over-month growth and Freemium pricing. Semantic Scholar records 8,198,672 monthly visits with +5.8% growth and Free pricing.
An AI writing workspace that keeps the craft in focus
A free, AI-powered academic search engine for 240M+ papers across every scientific field
| Dimension / Metric | | |
|---|---|---|
| Official Domain | lex.page | semanticscholar.org |
| Pricing Model | Freemium | Free |
| Monthly Visits | 24.32K (24,323) | 8.2M (8,198,672) |
| MoM Traffic Delta |
| -32.32K (-57.1%) |
| +450.65K (+5.8%) |
| Primary Market & Share | 🇺🇸 United States (43.1%) | 🇺🇸 United States (22.9%) |
|---|
| Direct Visits / mo | 14.65K | 1.88M |
|---|
| User Rating | 1.8 | 4.8 |
|---|
| Supported Platforms | Website | Website |
|---|
An AI writing workspace that keeps the craft in focus
Ask the built-in assistant to critique a passage, brainstorm alternatives or rewrite something, without leaving the document.
Keyboard-driven AI shortcuts find the better word, expand a bullet into prose or generate a list of ideas in place.
Threaded comments navigated by shortcut plus saved versions, so you can try a different way of saying something without losing the original.
Share a link for one-click co-editing in real time, or send a read-only link so others can simply read the finished piece.
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.
Paraphrase, proofread and summarize text with an AI writing workspace
Synthesizes direct evidence-based answers from scientific papers, but has a less comprehensive raw database than Semantic Scholar.
#3
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.
The AI workspace where researchers read, write, and cite with every claim traceable to its source
One workspace to write, check and summarize
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.
SpecialistOffers superior visual graph mapping of academic paper connections, but lacks traditional keyword search and full-text reading tools.
Write bolder, clearer prose with instant readability and grammar feedback
The AI editor built for finishing books, screenplays and long-form stories
SpecialistBroader real-time web search capabilities with academic filters, but less specialized for deep bibliographic citation analysis than Semantic Scholar.
Paraphrase, proofread and summarize text with an AI writing workspace
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.
Excels at automated systematic review data extraction and evidence synthesis, but indexes a narrower slice of literature.
The AI workspace where researchers read, write, and cite with every claim traceable to its source
One workspace to write, check and summarize
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.
SpecialistOffers superior visual graph mapping of academic paper connections, but lacks traditional keyword search and full-text reading tools.
Write bolder, clearer prose with instant readability and grammar feedback
The AI editor built for finishing books, screenplays and long-form stories
