Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
Ouro records 3,971 monthly visits with -15.7% month-over-month growth and Freemium pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.

An open workbench where scientists, engineers, and AI agents solve research problems together
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | ouro.foundation | prolific.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 3.97K (3,971) | 18.7M (18,697,671) |
| MoM Traffic Delta | -738 (-15.7%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇺🇸 United States (69.6%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 1.57K | 12.98M |
| User Rating | 4.2 | 4.6 |
| Supported Platforms | Website | Website |

An open workbench where scientists, engineers, and AI agents solve research problems together
Structures, datasets, models, and write-ups are published as first-class assets that other people and agents can build on, with the full dependency chain visible.
Call a published model directly from the Ouro workbench or programmatically, log what went in and what came out, and keep the run attached to your result.
Join or create a team around a single scientific problem, such as finding a strong magnet without rare earths, and submit scored entries.
Price your own datasets, files, posts, and API routes. Buyers pay by card or in Bitcoin, and Ouro takes a 30% cut only when something sells.
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.
Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams

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.
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.
An all-in-one AI super assistant for professionals and enterprises
An all-in-one AI super assistant for professionals and enterprises
No-code builder for custom AI agents and workflows
No-code builder for custom AI agents and workflows

Free / Open-sourceBuild, deploy, and govern production-ready agentic AI workflows
Free / Open-sourceBuild, deploy, and govern production-ready agentic AI workflows

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.

Free / Open-sourceOpen-source desktop AI workforce that runs browser, file, and app tasks for you

SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models

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.