Semantic Scholar records 8,198,672 monthly visits with +5.8% month-over-month growth and Free pricing. Surf records 116,252 monthly visits with -18.9% growth and Free, Pro, Max, API credits pricing.
A free, AI-powered academic search engine for 240M+ papers across every scientific field
Institution-grade crypto and equities intelligence, delivered through a chat-style AI analyst.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | semanticscholar.org | asksurf.ai |
| Pricing Model | Free | Free, Pro, Max, API credits |
| Monthly Visits | 8.2M (8,198,672) | 116.25K (116,252) |
| MoM Traffic Delta | +450.65K (+5.8%) | -27.18K (-18.9%) |
| Primary Market & Share | 🇺🇸 United States (22.9%) | 🇰🇷 South Korea (32.6%) |
| Direct Visits / mo | 1.88M | 88.81K |
| User Rating | 4.8 | 4.2 |
| Supported Platforms | Website | Website |
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.
Institution-grade crypto and equities intelligence, delivered through a chat-style AI analyst.
Ask questions about tokens, protocols, or equities in plain language and receive answers backed by visible sources rather than unsupported assertions.
Market prices, onchain events, SEC filings, and news are normalized into one structured layer so the model reasons over consistent inputs.
API, MCP server, CLI, and agent skills let teams wire Surf intelligence into their own agents, dashboards, and internal research workflows.
Purpose-built modules for tracking market-moving developments and for looking up structured context on projects and assets.
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.
AI trading indicators, real-trade orderflow and charts in one platform
AI trading indicators, real-trade orderflow and charts in one platform
Global macro data and AI research platform for smarter economic decisions
Global macro data and AI research platform for smarter economic decisions
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.
AI-native workspace for literature reviews and auditable systematic reviews
AI-native workspace for literature reviews and auditable systematic reviews
AI investing copilot for stock research, screening and market signals
AI investing copilot for stock research, screening and market signals
AI-driven market analysis for faster, data-backed investing decisions
AI-driven market analysis for faster, data-backed investing decisions
