Arbiter Hacks V1 Online Open innovation for all, submit projects that have potential impact and usability! $7,800 in prizes Dec 21, 2026 12:00 AM EST to submit 1124 participants
PayPal AI Hackathon Online Build what’s next with PayPal and AI $67,500 in prizes Winners TBD 35829 participants
Nebius x NVIDIA Global AI Hackathon Online Build the next frontier of AI on open infrastructure $50,000 in prizes Winners TBD 29869 participants
Build, Ship, Shape: Amazon Developer Hackathon Online Build across Amazon Devices and shape what's next. $138,000 in prizes Winners TBD 35454 participants
CALL-E: Your Code Is Calling Online Turn your code into an AI agent that makes real phone calls. $10,000 in prizes Winners announced 3198 participants
ML Empowerment Build Challenge 2.0 Online Learn AI, build real-world projects, and create impact through guided resources, mentorship, and a global community of student innovators. @mlempowermentfoundation on Instagram. Non-monetary prizes Winners announced 1183 participants
Slack Agent Builder Challenge Online Whether it's your first agent or your fiftieth - Slack is where it ships. $42,000 in prizes Winners announced 4404 participants
Google Cloud Rapid Agent Hackathon Online Building Agents for Real-World Challenges $60,000 in prizes Winners announced 14427 participants