
Battle-test AI coding models side by side
Battle-test AI coding models side by side
clickworker records 1,861,149 monthly visits with +0.5% month-over-month growth and Contact for Pricing pricing. huntr records 45,283 monthly visits with -61.9% growth and Free pricing.
The bug bounty platform built for AI and ML security
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | clickworker.com | huntr.com |
| Pricing Model | Contact for Pricing | Free |
| Monthly Visits | 1.86M (1,861,149) | 45.28K (45,283) |
| MoM Traffic Delta | +9.57K (+0.5%) | -73.65K (-61.9%) |
| Primary Market & Share | 🇺🇸 United States (27.6%) | 🇺🇸 United States (38.2%) |
| Direct Visits / mo | 947.13K | 22.9K |
| User Rating | 3.9 | 4.3 |
| Supported Platforms | Website | Website |

Crowdsourcing data services for AI training and market data
Custom image, video, audio and text datasets with human labeling, annotation and validation, delivered with parent company LXT.
Registered freelancers in 136 countries fill microtasks through web, Android and iOS apps, with flexible scaling up or down.
An all-in-one survey tool plus access to a verified respondent pool for external studies and targeted insights.
Real-time point-of-sale data collection, display audits, mystery checks, and usability testing for websites, apps and games.
The bug bounty platform built for AI and ML security
Time-boxed hacking challenges targeting LLM assistants, agentic systems and model artifacts, each with explicit objectives and rules.
Compete over a fixed window to climb public rankings and win real cash prizes for top placements.
After a challenge closes, outcomes and techniques are shared so the community can learn from each exploit.
Research coverage extends to ML supply chain targets such as Keras model deserialization and TensorFlow Lambda exploits.

Battle-test AI coding models side by side
Battle-test AI coding models side by side
Offers a high-quality pool of verified human participants for research and preference tuning, but is less focused on traditional data annotation.
Offers a high-quality pool of verified human participants for research and preference tuning, but is less focused on traditional data annotation.

Get paid to train the next generation of AI models

Specializes in matching AI labs with vetted human experts for RLHF, but offers fewer general data annotation services.
Specializes in matching AI labs with vetted human experts for RLHF, but offers fewer general data annotation services.

Provides enterprise-grade data annotation and training datasets at scale, but with a more corporate engagement model.

Free AI hackathons and a global community for AI builders
Free AI hackathons and a global community for AI builders
Free / Open-sourceFree practical deep learning courses, research and open-source libraries

Expert human data and evaluation for training frontier AI

Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceCommunity hub for data science, machine learning and AI practitioners
Free / Open-sourceCommunity hub for data science, machine learning and AI practitioners
Free / Open-sourceOpen-source engineering calculators for civil and structural design
Free / Open-sourceOpen-source engineering calculators for civil and structural design

SpecialistOffers powerful AI-assisted data annotation software and managed labeling, but lacks general crowdsourced web surveys and microtasks.
SpecialistOffers powerful AI-assisted data annotation software and managed labeling, but lacks general crowdsourced web surveys and microtasks.