VoltHacks Online Design. Build. Power the Future. Non-monetary prizes Winners announced 2147 participants
Reddit’s Games with a Hook Hackathon Online Join Reddit and Phaser to build incredible games for the Reddit community! $40,000 in prizes Winners announced 3062 participants
Slack Agent Builder Challenge Online Whether it's your first agent or your fiftieth - Slack is where it ships. $42,000 in prizes Winners announced 4406 participants
LUMA Pitch Competition (July 3rd - 10th) Online Pitch your idea, win $130 in subscription prizes guaranteed! $130 in prizes Winners announced 751 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
FIND EVIL! by Rob T. Lee Online AI threats strike in minutes. Build the defender that responds in seconds. $22,000 in prizes Winners announced 4387 participants
Google Cloud Rapid Agent Hackathon Online Building Agents for Real-World Challenges $60,000 in prizes Winners announced 14430 participants
