Kiroween 2026 Online Build something wicked and git commit to the darkness. $100,000 in prizes Dec 04, 2026 05:00 PM EST to submit 7806 participants
EurekaDev 2026 Online A 5-week global innovation challenge blending science fairs and hackathons. Research or code your way to innovation across multiple STEM tracks! Code, research and win prizes! $19,122 in prizes Winners TBD 581 participants
OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46665 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
BluePrint 2026 - Hackthon for freshers and Students Online Build practical solutions for real-world problems in Healthcare, EdTech, FinTech, AgriTech, Environment & E-Commerce. ₹ 18,000 in prizes Winners announced 903 participants
Learning Hackathon: Spec Driven Development Online Great AI projects start with great planning. Learn the process with Claude Code and apply it to yours. Non-monetary prizes Winners announced 1245 participants