OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46651 participants
STEM Connect Hackathon Fall 2025 Online Join us for the 2025 STEM Connect hackathon (formerly SASEhack)! The STEM Connect hackathon is a beginner-friendly, hybrid hackathon open only to undergraduate college students. $3,600 in prizes Winners announced 259 participants