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 10150 participants
The WebMCP Challenge Online 10 days for exploring what’s possible with WebMCP $35,000 in prizes Winners announced 7042 participants
AWS Trainium Frontier Competition Online Co-design models and kernels on purpose-built AI chips $40,000 in prizes Winners TBD 440 participants
OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46662 participants
Google Cloud Rapid Agent Hackathon Online Building Agents for Real-World Challenges $60,000 in prizes Winners announced 14430 participants
Hackdays Lucknow Mini-hackathons powered by Google Gemini Non-monetary prizes May 24, 2026 39 participants