OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46672 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 1082 participants
DiamondHacks 2026 San Diego, CA, USA San Diego's Largest Hackathon $25,710 in prizes Apr 4 – 5, 2026 366 participants
Agentic Orchestration Hack San Francisco, CA, USA We’ve stacked real infra and real AI so your hack ships as a product, not a slide. In one sprint, build agents, copilots, and autonomous systems that actually work end to end. $29,300 in prizes Jan 16, 2026 170 participants
Cal Hacks 12.0 San Francisco, CA, USA This year's Cal Hacks is co-hosted by Claude, Fetch AI, AppLovin, and Amazon's Annapurna Labs! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $58,100 in prizes Oct 24 – 26, 2025 2156 participants
STEM Connect Hackathon Fall 2025 Online Join us for the 2025 STEM Connect hackathon (formerly SASEhack)! The STEM Connect hackathon is a beginner-friendly, hybrid hackathon open only to undergraduate college students. $3,600 in prizes Winners announced 259 participants
UC Berkeley AI Hackathon 2025 Berkeley, CA, USA Come join us at the world's largest AI Hackathon hosted by Cal Hacks! $41,564 in prizes Jun 21 – 22, 2025 1035 participants
AI in Action Online Innovate Together: A Multi-Partner Google Cloud Hackathon $50,000 in prizes Winners announced 6683 participants
Cal Hacks 11.0 San Francisco, CA, USA This year's Cal Hacks is co-hosted by Google and Fetch.ai. Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $188,960 in prizes Oct 19 – 20, 2024 1134 participants
HackMerced IX Merced, CA, USA Ninth iteration of the biggest hackathon in the San Joaquin Valley! $15,161 in prizes Mar 8 – 10, 2024 165 participants
