OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46686 participants
UC Berkeley AI Hackathon 2026 Berkeley, CA, USA Come join us at the world's largest AI Hackathon hosted by the team behind Cal Hacks! $96,700 in prizes Jun 20 – 21, 2026 1097 participants
DA Hacks 3.5 Cupertino, CA, USA De Anza hackathon is back! Join us for our 5th year with 200+ hackers! Non-monetary prizes May 12 – 30, 2025 110 participants
HackDavis 2025 Davis, CA, USA // create for social good_ Non-monetary prizes Apr 19 – 20, 2025 531 participants
SFHacks 2025 San Francisco, CA, USA Spend a weekend in San Francisco and build awesome projects! $3,300 in prizes Apr 4 – 6, 2025 226 participants
