OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners TBD 46782 participants
Reddit’s Games with a Hook Hackathon Online Join Reddit and Phaser to build incredible games for the Reddit community! $40,000 in prizes Winners TBD 3072 participants
Meta Horizon Creator Competition - Game Design Online Design a production-ready mobile game. $250,000 in prizes. $250,000 in prizes Winners announced 567 participants
DevNetwork [AI + ML] Hackathon 2026 South San Francisco, CA, USA Join the nation's largest challenge-driven AI and ML in-person + online hackathon @ AI DevSummit 2026! $8,000 in prizes May 11 – 28, 2026 1129 participants
Reddit Mod Tools and Migrated Apps Hackathon Online Join Reddit to build moderation tools for the Reddit community! $45,000 in prizes Winners announced 3098 participants
Build with MeDo Hackathon Online Build creative applications with MeDo, no coding required. Push the boundaries of what you can create. $50,000 in prizes Winners announced 8361 participants
Reddit and Kiro: Community Games Challenge Online Reddit and Kiro are hosting a virtual hackathon for the best community game! $45,000 in prizes Winners announced 1926 participants
RevenueCat Shipaton 2025 Online Ship apps and start making money. $355,000 in prizes Winners announced 51886 participants
Tech 4 Social Good Online Build a solution that empowers learners €2,000 in prizes Winners announced 504 participants
Code with Kiro Hackathon Online A challenge for developers to explore Kiro, an AI IDE that works alongside you to turn ideas into production code with spec-driven development. $100,000 in prizes Winners announced 9956 participants
![DevNetwork [AI + ML] Hackathon 2026](http://d112y698adiu2z.cloudfront.net/photos/production/challenge_thumbnails/004/474/092/datas/medium.jpg)
