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 8267 participants
PayPal AI Hackathon Featured Online Build what’s next with PayPal and AI $67,500 in prizes Nov 12, 2026 03:00 PM EST to submit 28135 participants
Codex x TwitchCon Hackathon Online Build for streamers and their community on Twitch with OpenAI Codex. $25,000 in prizes, and the top 5 are shown on the Codex Booth stage at TwitchCon. $25,000 in prizes Winners TBD 2225 participants
Qloo Agentic Hackathon Online Agents, but with taste. $25,000 in prizes Winners TBD 2992 participants
Nebius x NVIDIA Global AI Hackathon Online Build the next frontier of AI on open infrastructure $50,000 in prizes Winners TBD 29877 participants
Google Cloud Rapid Agent Hackathon Online Building Agents for Real-World Challenges $60,000 in prizes Winners announced 14430 participants
Hack(H)er413 2026 Forest Park, GA, USA Submit your project for Hack(H)er413 2026 here! Non-monetary prizes Feb 21 – 22, 2026 224 participants
HackUMass XI Amherst, MA, USA Build any software/hardware project you desire in an educational environment with workshops, mentors, and tons of resources for learning $9,385 in prizes Nov 10 – 12, 2023 306 participants