Prolific records 77,755 monthly visits with -24% month-over-month growth and Paid pricing. Thor Data records 181,966 monthly visits with -3.5% growth and Free Trial, Paid pricing.
Real human data for AI training, evals, and research — in minutes
Proxies and web data APIs for scraping and AI pipelines
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.co | thordata.com |
| Pricing Model | Paid | Free Trial, Paid |
| Monthly Visits | 77.76K (77,755) | 181.97K (181,966) |
| MoM Traffic Delta | -24.51K (-24%) | -6.55K (-3.5%) |
| Primary Market & Share | 🇬🇧 United Kingdom (15%) | 🇵🇱 Poland (8.8%) |
| Direct Visits / mo | 62.15K | 70.44K |
| User Rating | 4.7 | 4.3 |
| Supported Platforms | Website | Website |
Real human data for AI training, evals, and research — in minutes
Access hundreds of thousands of vetted participants across 40+ countries, with demographic screening so you can target the exact population your study or evaluation needs.
Purpose-built workflows for collecting human preference judgments, red-teaming feedback, and benchmark ratings for large language and multimodal models.
Programmatic access that lets engineering teams pipe real human feedback into model evaluation and agent workflows without leaving their own tooling.
Launch a study in minutes, set quotas and reward levels, and scale sample sizes up or down while keeping response quality consistent.
Proxies and web data APIs for scraping and AI pipelines
Access 100M+ rotating real-user IPs across 190+ countries at from $0.65/GB, with rotation and sticky sessions.
Use real 4G/5G mobile IPs for mobile-specific and hard-to-access targets with carrier-level diversity.
Pull accurate, real-time results from Google, Bing, and more, starting from $0.70 per 1,000 responses.
Deploy 120+ prebuilt scrapers, a stealth Scraping Browser, and web unblocking to collect data at scale.
Extensive cloud platform hosting pre-built scrapers, crawlers, and automation actors for data extraction.
Extensive cloud platform hosting pre-built scrapers, crawlers, and automation actors for data extraction.
Targeted research audiences with AI-verified data quality
Targeted research audiences with AI-verified data quality
Free / Open-sourceDeveloper-first scraping API that crawls and converts websites into clean LLM-ready markdown or JSON.
Free / Open-sourceDeveloper-first scraping API that crawls and converts websites into clean LLM-ready markdown or JSON.
Developer API platform providing live web search, content fetching, cloud browsers, and agentic web automation.
SpecialistWeb search and crawling API engineered specifically for AI agents and LLM application integration.
Free / Open-sourceThe real-time web access layer for AI agents and deep research
Free / Open-sourceThe real-time web access layer for AI agents and deep research
Comprehensive web data infrastructure powerhouse offering extensive proxy networks and advanced scraping APIs.
Comprehensive web data infrastructure powerhouse offering extensive proxy networks and advanced scraping APIs.
The environments frontier AI trains on, and the agents that do the recurring work
The environments frontier AI trains on, and the agents that do the recurring work
The data, evaluations and systems behind AI that has to be right.
Turn customer voices into confident decisions
SpecialistSearch infrastructure providing URL-to-Markdown document readers, neural embeddings, and web search endpoints.
SpecialistSearch infrastructure providing URL-to-Markdown document readers, neural embeddings, and web search endpoints.
The multimodal data layer for computer vision and physical AI teams
