OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46665 participants
Creator Colosseum Startup Competition: Student Founders. Real Startups. Online Bring your startup idea to reality with professional feedback and mentorship for top 10 ideas, as well as $500+ in total cash prizes $575 in prizes Winners announced 586 participants
UiPath AgentHack Online Build the AI agents of tomorrow. $50,000 in prizes Winners announced 3998 participants
Youth Code x AI Online Harness AI to create innovative solutions for real-world challenges in business, education, mental health, sports, the environment, and communities! $2,700 in prizes Winners announced 1035 participants
USAII® Global AI Hackathon 2026 Online (* REGISTRATION EXPIRED JUNE 6 11:59 PM ET *) A global virtual AI hackathon empowering students to build solutions for real-world good—from everyday impact to career readiness. $15,000 in prizes Winners announced 6063 participants
Google Cloud Rapid Agent Hackathon Online Building Agents for Real-World Challenges $60,000 in prizes Winners announced 14430 participants
Reddit Mod Tools and Migrated Apps Hackathon Online Join Reddit to build moderation tools for the Reddit community! $45,000 in prizes Winners announced 3088 participants
