OpenAI Open Model Hackathon Online Build with gpt-oss, OpenAI’s open weight reasoning models. $30,000 in prizes Winners announced 8639 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 2827 participants
Agent Development Kit Hackathon with Google Cloud Online Build multi-agent AI systems with Agent Development Kit and Google Cloud $50,000 in prizes Winners announced 10349 participants
HackNewHaven Online To allow programmers of all skill levels to code in a safe and fun environment. Non-monetary prizes Winners announced 49 participants