High-quality human data for AI training, evaluation, and research
CoderPad records 809,073 monthly visits with +12.4% month-over-month growth and Free Trial, Paid, Contact for Pricing pricing. SourceBae records 21,727 monthly visits with +20.1% growth and Contact for Pricing pricing.
Train AI with domain experts and real-world data
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | coderpad.io | sourcebae.com |
| Pricing Model | Free Trial, Paid, Contact for Pricing | Contact for Pricing |
| Monthly Visits | 809.07K (809,073) | 21.73K (21,727) |
| MoM Traffic Delta | +89.3K (+12.4%) | +3.63K (+20.1%) |
| Primary Market & Share | 🇺🇸 United States (69.5%) | 🇮🇳 India (80.7%) |
| Direct Visits / mo | 509.51K | 3.66K |
| User Rating | 4.4 | 4.1 |
| Supported Platforms | Website | Website |

Skills-based hiring platform for technical interviews, assessments and live coding
A multi-file IDE with whiteboard, structured scoring, private notes and code playback so interviewers can assess real problem solving rather than puzzle recall.
Automated pre-screens built from practical engineering tasks, with clear scoring that helps recruiters move qualified candidates forward faster.
AI assistants work with code context, prompts are captured, and AI reviewers rank video or code submissions against your own rubric.
Adaptive tests, activity monitoring, real-time alerts and playback reports help detect suspicious behaviour without manual review.
Train AI with domain experts and real-world data
Generate supervised fine-tuning prompts, reference answers, demonstrations and review rubrics with specialists matched to your subject area rather than generalist annotators.
Collect comparison data on accuracy, relevance, instruction following and domain quality so models can be tuned against ranked human preferences.
Capabilities Assessment responses against expert-defined criteria to surface errors, knowledge gaps and inconsistent behaviour, and run adversarial prompts to expose safety failures.
Capture real tasks in households, factories, warehouses, workshops, farms, labs and clinical settings to build training data for robotics and Physical AI.
High-quality human data for AI training, evaluation, and research

AI-powered talent marketplace connecting experts with frontier AI work

Free / Open-sourceThe agent recruits, you manage talent
Agentic skills intelligence for hiring, developing, and planning talent

AI-powered candidate matching inside Arc's vetted remote-talent marketplace
AI-powered candidate matching inside Arc's vetted remote-talent marketplace

Hire real people for tasks AI agents can't do in the physical world
Hire real people for tasks AI agents can't do in the physical world

Interviews on demand, AI-driven or expert-led

Focuses on realistic job simulations and multi-disciplinary assessments rather than purely live coding interview sessions.
Focuses on realistic job simulations and multi-disciplinary assessments rather than purely live coding interview sessions.
Free / Open-sourceAI agents that run hiring from applicant to paycheck
Free / Open-sourceAI agents that run hiring from applicant to paycheck

Automates candidate screening and video interviewing, but lacks dedicated collaborative coding IDEs.
Automates candidate screening and video interviewing, but lacks dedicated collaborative coding IDEs.

Includes built-in proctoring and automated coding IDE environments, though with a smaller established enterprise user base.
Includes built-in proctoring and automated coding IDE environments, though with a smaller established enterprise user base.