Codex Community Hackathon – Singapore

A global hackathon with OpenAI On Saturday, September 12, AI Tinkerers cities around the world are joining one shared build day. Build an agent for a place people already work, talk, and live, then make it meaningfully more useful because of that context. Event details Date: Saturday, September 12, 2026Time: 10 a.m.–5 p.m. local timeLocation: Shared upon acceptanceFormat: Focused local build day, connected to one global challengeFood and drinks: Provided The challenge Most agents still wait inside a separate chat window. This build day starts from a different premise: the most useful agents will show up inside the tools, channels, devices, and environments where people already have work to do. Build a working agent that belongs somewhere new. Your project might live: At work: Slack, Teams, email, documents, calendars, tickets, support, or live collaborationIn your pocket: messaging, mobile, notifications, and short asynchronous momentsOn the web: browsers and software where an agent can research, navigate, transact, or take actionIn the room: voice, vision, wearables, robotics, and other physical-world interfaces These are examples, not separate tracks. Every team around the world enters the same global submission pool. The day TimeWhat happens10:00–10:30Doors, food, check-in, and meeting potential teammates10:30–11:00Shared global opening and starter-kit walkthrough11:00–11:15Team formation11:15–15:30Build session15:30–16:30Local show-and-tell16:30–17:00Submit and wrap Local demos are for sharing work and learning from the room. There is no formal local judging. Your build stack OpenAI and the event partners will provide shared starter materials, technical resources, and builder credits/offers where available. We will share the final starter repo and access details ahead of the event. You do not need to use every tool in the stack. Choose the resources that make your idea better and make the technical choices that fit the project. What every team submits Before the event ends, every team submits: Title — a clear name for the projectWritten description — what you built, who it is for, and why the context mattersPublic GitHub repository — working code that can be reviewed and learned fromTwo-minute video — a concise demo of the project in actionSocial post — a public post about the project that tags the event sponsors Build something that can be shown. A sharp, working demo beats a broad concept. Global review and prizes Every eligible project from every participating city goes into one global review process. The final judging rubric, prize categories, and award details will be shared with builders before the event. Who should come This is a builders-only AI Tinkerers event, and attendance is by application only. It is for engineers, technical founders, researchers, and designers who build and are ready to spend the day shipping a working prototype. Come with a team, come solo, or find collaborators at the event. Apply to join us. Space is limited in each city. Organizers Questions More starting materials and event details will be shared with accepted builders before September 12. Global Sponsors OpenAI OpenAI is the headline partner for this global hackathon, supporting the builders pushing agents beyond the chatbox and into the places people already work, talk, and live. CopilotKit CopilotKit is the open-source framework for building in-app AI copilots and agentic interfaces. Its tools help developers bring agents into the products people already use. OpenRouter OpenRouter gives developers a unified API for working with leading AI models. Builders can use it to explore the right models for their projects and ship quickly. Many more global partners will be joining the event and added to this page soon.