OpenAI Open Model Hackathon Online Build with gpt-oss, OpenAI’s open weight reasoning models. $30,000 in prizes Winners announced 8654 participants
Profhacks 2025 Glassboro, NJ, USA Profhacks 2025: Rowan IEEE Student Branch's annual hackathon is back for its tenth itteration! Non-monetary prizes Mar 29 – 30, 2025 52 participants