Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. Step1 records 0 monthly visits with — growth and Free pricing.
High-quality human data for AI training, evaluation, and research
An AI-powered Web3 user graph for fairer rewards
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.com | chromewebstore.google.com |
| Pricing Model | Paid | Free |
| Monthly Visits | 18.7M (18,697,671) | 0 (0) |
| MoM Traffic Delta | -352.04K (-1.8%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🌐 Global (—) |
| Direct Visits / mo | 12.98M | 0 |
| User Rating | 4.6 | 1.8 |
| Supported Platforms | Website | Browser Extension |
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.
An AI-powered Web3 user graph for fairer rewards
AI and big-data methods combine on-chain signals into a picture of who a Web3 user is and how they behave.
Scores and compares participants so that genuine contributors stand out from freeloaders and farm accounts.
Aimed at making incentive programs fairer by rewarding high-quality participation rather than volume.
Installs from the Chrome Web Store and runs alongside your normal Web3 browsing.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.
Agentic web scraper that turns any page into ready-to-use data
Agentic web scraper that turns any page into ready-to-use data
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
Privacy-first AI surveys with end-to-end encrypted responses
Privacy-first AI surveys with end-to-end encrypted responses
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Cookie-free web analytics you can run without consent banners or personal data
Cookie-free web analytics you can run without consent banners or personal data
Turn messy data into beautiful, story-ready charts with AI
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
