Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. WolframAlpha records 3,101,089 monthly visits with +5.6% growth and Freemium pricing.
High-quality human data for AI training, evaluation, and research
Computational knowledge engine for expert answers
| Dimension / Metric | ||
|---|---|---|
| Official Domain | prolific.com | wolframalpha.com |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 18.7M (18,697,671) | 3.1M (3,101,089) |
| MoM Traffic Delta | -352.04K (-1.8%) | +163.42K (+5.6%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🇺🇸 United States (37.6%) |
| Direct Visits / mo | 12.98M | 1.48M |
| User Rating | 4.6 | 4.7 |
| Supported Platforms | Website | Website |
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.
Computational knowledge engine for expert answers
Enter a question in natural language or via math input and get computed answers with plots, units, and context.
Solve algebra, calculus, differential equations, statistics, and more, with worked solutions on Pro.
Pull facts, conversions, and comparisons across geography, history, money, nutrition, and more.
Auto-generate charts, plots, and visual representations of results.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistMoonshot AI's long-context assistant for research, coding, and agentic work
SpecialistMoonshot AI's long-context assistant for research, coding, and agentic work
SpecialistA free, AI-powered academic search engine for 240M+ papers across every scientific field
SpecialistA free, AI-powered academic search engine for 240M+ papers across every scientific field
SpecialistSnap a homework question and get step-by-step AI answers
SpecialistAI academic search engine for peer-reviewed science
SpecialistAI research platform for reading, understanding and writing scientific papers
SpecialistAI research platform for reading, understanding and writing scientific papers
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.
SpecialistAn open, AI-written encyclopedia built and fact-checked by Grok
SpecialistAn open, AI-written encyclopedia built and fact-checked by Grok
SpecialistAI answers grounded in 300M+ scholarly full texts
SpecialistAI answers grounded in 300M+ scholarly full texts
