
SpecialistThe AI workspace where teams and agents get work done together
Cluing records 11,227 monthly visits with -43.1% month-over-month growth and Freemium pricing. Semantic Scholar records 8,198,672 monthly visits with +5.8% growth and Free pricing.

Knowledge layer that gives your AI the context it lacks
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | cluing.io | semanticscholar.org |
| Pricing Model | Freemium | Free |
| Monthly Visits | 11.23K (11,227) | 8.2M (8,198,672) |
| MoM Traffic Delta | -8.52K (-43.1%) | +450.65K (+5.8%) |
| Primary Market & Share | 🇺🇸 United States (50.1%) | 🇺🇸 United States (22.9%) |
| Direct Visits / mo | 4.45K | 1.88M |
| User Rating | 3.9 | 4.8 |
| Supported Platforms | Website | Website |

Knowledge layer that gives your AI the context it lacks
Save highlights and insights from webpages, PDFs, videos, social posts, newsletters, Kindle, and email using a browser extension or mobile capture.
Let AI suggest structure, group related insights, and use knowledge triggers and chat to keep your base tidy and searchable.
Feed your stored knowledge to any frontier model or custom agent via an AI Canvas and native MCP, so your context travels with you.
Build a common context space that both people and AI agents draw on for research, feedback, and collaboration.

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.

SpecialistThe AI workspace where teams and agents get work done together
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.

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.
SpecialistTencent's AI knowledge steward for searching, reading, writing, and managing your own knowledge base.
SpecialistTencent's AI knowledge steward for searching, reading, writing, and managing your own knowledge base.
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.
SpecialistA polished space for notes, tasks, and documents that follows you across every device.
SpecialistA polished space for notes, tasks, and documents that follows you across every device.
AI-native workspace for literature reviews and auditable systematic reviews
AI-native workspace for literature reviews and auditable systematic reviews

SpecialistAI agents that turn your own documents into summaries, mind maps and reports
SpecialistAI agents that turn your own documents into summaries, mind maps and reports