Arbiter Hacks V1 Online Open innovation for all, submit projects that have potential impact and usability! $7,800 in prizes Dec 21, 2026 12:00 AM EST to submit 802 participants
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 26879 participants
Codex x TwitchCon Hackathon Featured 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 Nov 02, 2026 05:00 PM EST to submit 2089 participants
YouCam API Skin AI & eCommerce VTO Hackathon Featured Online Build with the YouCam API to Shape the Future of Skincare, Beauty, Fashion and eCommerce - Compete for Top Prizes $6,000 in prizes Nov 02, 2026 11:45 AM EST to submit 1683 participants
Qloo Agentic Hackathon Online Agents, but with taste. $25,000 in prizes Winners TBD 2994 participants
IEEE ClimateChain Global Hackathon Online AI and BLOCKCHAIN Innovate Today for a Sustainable Tomorrow. $3,000 in prizes Winners TBD 1214 participants
Hack Apertus St. Gallen, Switzerland Welcome to the first stage of «Hack Apertus», an open-source hackathon series to evaluate, align, and build on Apertus, Switzerland’s sovereign LLM. €10,680 in prizes Oct 1 – 16, 2026 915 participants
ForgeHacks Online 2026 Online A student hackathon focused on Forging AI solutions that solves real-world challenges. $2,647,335 in prizes Winners announced 3313 participants
Build with DataHub: The Agent Hackathon Online Build AI agents with DataHub's open-source Context Platform. $20,500 in prizes Winners announced 3052 participants
IncludAI - The Neurodiversity Hackathon, in Partnership with Stanford NNEA Online Build AI tools that actually work for neurodivergent learners — by the community, for the community. $3,000 in prizes Winners announced 383 participants