Kiroween 2026 Online Build something wicked and git commit to the darkness. $100,000 in prizes Dec 04, 2026 05:00 PM EST to submit 7001 participants
OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46665 participants
AI Partner Catalyst: Accelerate Innovation Online Accelerating innovation through the Google Cloud partner ecosystem $75,000 in prizes Winners announced 6917 participants
Kiroween Online Build something wicked for Kiroween, our annual Halloween-themed hackathon where developers dare to code in dark mode $100,000 in prizes Winners announced 4959 participants
OpenAI Open Model Hackathon Online Build with gpt-oss, OpenAI’s open weight reasoning models. $30,000 in prizes Winners announced 8635 participants
The PartyRock Generative AI Hackathon by AWS Online Learn Generative AI with PartyRock; Make Apps Without Code! $113,000 in prizes Winners announced 7565 participants