PayPal AI Hackathon Online Build what’s next with PayPal and AI $67,500 in prizes Nov 12, 2026 03:00 PM EST to submit 34711 participants
AI YES :International Youth AI Competition Online AI YES ! EVERY YES! Non-monetary prizes Winners TBD 327 participants
Build with Paritok: The Token-Efficiency Hackathon Online Build any AI project on Paritok's open-source models — measured 74% fewer input tokens, real workflows, real reduction. $630 in prizes Winners announced 197 participants
OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46655 participants
