PayPal AI Hackathon Online Build what’s next with PayPal and AI $67,500 in prizes Nov 12, 2026 03:00 PM EST to submit 23541 participants
Nebius x NVIDIA Global AI Hackathon Online Build the next frontier of AI on open infrastructure $50,000 in prizes Oct 30, 2026 01:00 PM EDT to submit 28882 participants
Cal Hacks 13.0 San Francisco, CA, USA This year's Cal Hacks is presented by Anthropic, Annapurna Labs, Spacetime, and Hyphenate! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $159,822 in prizes Oct 23 – 25, 2026 1917 participants
WarriorHacks 2.0 Online Open to all skill levels! Build an app, website, game, or pitch an idea that fits the theme revealed before the submission phase opens. Non-monetary prizes Winners announced 2430 participants
Deep Agents Hackathon 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. $43,901 in prizes Mar 27, 2026 153 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