Agents for Humans Hackathon Online Build an AI agent with Strands Agents SDK that handles repetitive tasks $40,000 in prizes Winners TBD 9923 participants
The WebMCP Challenge Online 10 days for exploring what’s possible with WebMCP $35,000 in prizes Winners announced 7061 participants
All Things Agentic Hackathon Online Ready, Set, Agent! Build next-generation agents that run in the background, handle the heavy lifting of massive datasets, and automate complex workflows asynchronously. $180,000 in prizes Winners TBD 12280 participants
OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46687 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 announced 3064 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 4419 participants
UiPath AgentHack Online Build the AI agents of tomorrow. $50,000 in prizes Winners announced 4005 participants
H0: Hack the Zero Stack with Vercel v0 and AWS Databases Online Front-end in minutes. Back-end designed for scale. $80,000 in prizes Winners announced 9726 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 3088 participants
GitLab AI Hackathon Online You Orchestrate. AI Accelerates. $65,000 in prizes Winners announced 6933 participants
Amazon Nova AI Hackathon Online Build your way with Amazon Nova $40,000 in prizes Winners announced 13413 participants
RevenueCat Shipyard: Creator Contest Online Collaborate with creators to build their app in 1 month $165,000 in prizes Winners announced 7057 participants
The Reddit Daily Games Hackathon Online Join Reddit and GameMaker to build incredible daily games for the Reddit community! $40,000 in prizes Winners announced 2980 participants
Tableau Hackathon Online The Future of Analytics is Here. Start Building. $45,000 in prizes Winners announced 2241 participants
Datathon PolyFinances 2025 Montreal, Canada An intensive challenge where data and finance students join forces to solve real-world business problems. $4,500 in prizes Nov 1 – 2, 2025 109 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 1925 participants
AI Accelerate: Unlocking New Frontiers Online Unlocking New Frontiers: A Multi-Partner Google Cloud Hackathon $50,000 in prizes Winners announced 2721 participants
AWS AI Agent Global Hackathon Online Agents of change - building tomorrows AI solution today $45,000 in prizes Winners announced 9465 participants
RevenueCat Shipaton 2025 Online Ship apps and start making money. $355,000 in prizes Winners announced 51880 participants
GKE Turns 10 Hackathon Online Build next gen microservices with AI Agents $50,000 in prizes Winners announced 4703 participants
Tableau Next Virtual Hackathon Online Lead the Agentic Analytics Era and Win Big Prizes $45,000 in prizes Winners announced 4490 participants
Fun and Games with Devvit Web Online Create a new game or experience for the Reddit community! $49,000 in prizes Winners announced 2603 participants