
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.
OpinioAI records 0 monthly visits with 0% month-over-month growth and Freemium, Paid pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.

Customer insight and creative testing powered by AI personas
High-quality human data for AI training, evaluation, and research
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | opinio.ai | prolific.com |
| Pricing Model | Freemium, Paid | Paid |
| Monthly Visits | 0 (0) | 18.7M (18,697,671) |
| MoM Traffic Delta | 0 (0%) | -352.04K (-1.8%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 0 | 12.98M |
| User Rating | 4.3 | 4.6 |
| Supported Platforms | Website | Website |

Customer insight and creative testing powered by AI personas
Create AI personas that represent your target customers, then query them to explore perceptions, preferences and reactions.
Run synthetic research and surveys to gather fast feedback on concepts, copy and creative before committing budget.
Test advertising, messaging and creative ideas against AI personas to see what resonates before launch.
Analyse research responses and turn them into structured insights for segmentation and positioning decisions.
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.

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.
Qualitative research depth at survey scale, moderated by AI
Qualitative research depth at survey scale, moderated by AI

SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
AI-driven market intelligence and trade data for 10,000+ products
AI-driven market intelligence and trade data for 10,000+ products

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.

AI-native customer intelligence platform that turns every customer conversation into context
AI-native customer intelligence platform that turns every customer conversation into context

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.

SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
Generate data-backed personas, digital twins and synthetic research on demand
Generate data-backed personas, digital twins and synthetic research on demand