OpenAI Open Model Hackathon Online Build with gpt-oss, OpenAI’s open weight reasoning models. $30,000 in prizes Winners announced 8650 participants
HackPue Heroica Puebla de Zaragoza, Mexico A programming competition where students, professionals, and technology enthusiasts come together to create innovative solutions to today's most pressing problems. Non-monetary prizes Aug 16 – 17, 2025 161 participants