Build with Gemini XPRIZE Online $2,000,000 in prizes. Build with Gemini. Ship products that impact the world. $2,000,000 in prizes Winners announced 26393 participants
Reddit Mod Tools and Migrated Apps Hackathon Online Join Reddit to build moderation tools for the Reddit community! $45,000 in prizes Winners announced 3088 participants
OpenClaw Hackathon Vienna Wien, Austria Build innovative real world systems using AI across Agents, OpenClaw, Healthcare and Cyber Security. $2,875 in prizes Mar 27 – 28, 2026 71 participants