OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46685 participants
Google Cloud Rapid Agent Hackathon Online Building Agents for Real-World Challenges $60,000 in prizes Winners announced 14443 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
Build with MeDo Hackathon Online Build creative applications with MeDo, no coding required. Push the boundaries of what you can create. $50,000 in prizes Winners announced 8346 participants
Africa Deep Tech Challenge 2025 Online Create breakthrough solutions that thrive under constraints and unlock Africa’s deep tech potential. $20,000 in prizes Winners announced 2816 participants
