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Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

High-quality human data for AI training, evaluation, and research

Targeted research audiences with AI-verified data quality

Purpose-built AI and trusted content for legal, tax, risk and trade professionals

AI answers grounded in 300M+ scholarly full texts

A free, AI-powered academic search engine for 240M+ papers across every scientific field

AI research platform for reading, understanding and writing scientific papers

AI research tools and expert publication services in one place

Verified B2B and healthcare respondents for high-quality research

AI research assistant for evidence-based literature review and synthesis

The real-time web access layer for AI agents and deep research

AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale

Deep research answers that combine ChatGPT, Gemini, Claude and more

Explore the academic literature as a visual graph of related papers

Real human data for AI training, evals, and research — in minutes

Qualitative research depth at survey scale, moderated by AI

AI-powered platform to read, write, and stay current with research

AI-native workspace for literature reviews and auditable systematic reviews

Computational knowledge engine for expert answers

Online research platform with webcam eye-tracking, no lab hardware required

AI-driven market intelligence and trade data for 10,000+ products

Mine a million real user complaints for validated startup ideas

Expert-led, AI-native primary research for private equity, healthcare and life sciences — consulting-grade studies delivered in about two weeks.

AI-led customer interviews and research insights at scale