Post coding challenges with real prizes. Solve them with a full AI workspace. Three independent AI models grade every submission on correctness, efficiency, creativity, and communication -- no human bias, no black boxes.
3
AI Graders
4
Score Dimensions
14+
AI Models
How It Works
Define your problem, set grading criteria, and optionally attach a prize pool. Your challenge goes live in seconds.
Candidates get a full AI workspace — chat, code editor, multi-model access. Build solutions with the best tools available.
Three independent AI models score every submission on correctness, efficiency, creativity, and communication. Scores come with detailed rubrics -- no guesswork.
Platform
Everything you need to prove your skills, from AI-powered workspaces to transparent grading.
Dedicated chat + code editor with access to Claude, GPT-4o, Gemini, and more. Build solutions in real-time.
Every submission scored by 3 different AI models across 4 dimensions. No single-point-of-failure in evaluation.
Earn badges for milestones, high scores, streaks, and mastery. Build a portfolio that speaks for itself.
Employers attach real money. Top performers earn prizes and rank on public leaderboards.
Get Started
Join thousands of developers proving their skills through fair, AI-graded challenges. No resumes, no gatekeeping -- just your code.