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 4982 participants
Google Chrome Built-in AI Challenge 2025 Online Innovate with Intelligence: Build the Future of the Web with Gemini Nano and Chrome AI. $70,000 in prizes Winners announced 14080 participants
Proof of Concept Online If you could prove any data on the internet - what would you build? $25,000 in prizes Winners announced 1909 participants
OpenAI Open Model Hackathon Online Build with gpt-oss, OpenAI’s open weight reasoning models. $30,000 in prizes Winners announced 8656 participants
World’s Largest Hackathon presented by Bolt Online Build with AI for a shot at some of the $1M+ in prizes. $1,037,500 in prizes Winners announced 128426 participants
Google Chrome Built-in AI Challenge Online Develop a web application or Chrome Extension that uses one or more Chrome built-in AI APIs to interact with integrated models such as Gemini Nano. $65,000 in prizes Winners announced 8502 participants
Microsoft Developers AI Learning Hackathon Online Learn to build your AI apps with Azure Cosmos DB $10,000 in prizes Winners announced 9470 participants
Google Cloud Vertex AI Agent Builder Hackathon Online Dive into AI Agents: Explore, Create, and Win Big at the Vertex AI Hackathon! $30,000 in prizes Winners announced 3637 participants
Google AI Hackathon Online Build a creative app that uses Google’s Generative AI tools. Push the boundaries of what Gen AI apps can do with Gemini! $50,000 in prizes Winners announced 15485 participants
Twitch Dev Jam 2019 Online Build a game-matched Extension and compete for $60k in cash prizes $60,000 in prizes Winners announced 591 participants
Microsoft Azure AI Hackathon Online Check out the current Azure AI Hackathon: $23,000 in prizes Winners announced 895 participants
Serverless Apps for Social Good Online Help the world by building open source serverless apps for the AWS Serverless Application Repository. $22,000 in prizes Winners announced 704 participants
AWS Chatbot Challenge Online Create conversational, intelligent chatbots using Amazon Lex and AWS Lambda! $19,797 in prizes Winners announced 3850 participants
