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

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

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

Targeted research audiences with AI-verified data quality

AI research assistant for evidence-based literature review and synthesis

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

Explore the academic literature as a visual graph of related papers

Map the literature around the papers you love—free

AI answers grounded in 300M+ scholarly full texts

AI research platform for reading, understanding and writing scientific papers

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

AI academic search engine for peer-reviewed science

Verified B2B and healthcare respondents for high-quality research

AI research tools and expert publication services in one place

AI-native workspace for literature reviews and auditable systematic reviews

Qualitative research depth at survey scale, moderated by AI

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

AI-moderated customer interviews that turn conversations into decisions

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

One AI agent for finding, reading and writing with real research

Screen thousands of papers down to the studies that matter

Turn customer voices into confident decisions

Domain-specific AI agents for innovation, R&D, and intellectual property

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