AI Builders × commIT | Hack Day Berlin 2026
Date & Time
FRI 20 NOV
Capacity
Open
About
Build something useful with AI. Ship a prototype. Demo it live! Join AI Builders and commIT in Berlin for a full day of building with AI. Bring an idea, meet collaborators, and turn a promising concept into a working prototype alongside fellow builders. Whether you’re an experienced developer, an AI enthusiast, a designer, a founder, or someone who wants to explore what’s possible with AI, this is a chance to learn by building. Come with a team or arrive solo and find people to build with! // FOR WHO ✅ Developers, product people, data enthusiasts, ML engineers and founders ✅ Anyone interested in building useful things with AI ✅ AI builders exploring applications, agents, workflows and automation ✅ Solo participants and existing teams of up to 4 people ⚠️ Basic familiarity with AI tools or LLM concepts is helpful, but curiosity and a willingness to build matter most! // FORMAT 🚀 Open AI Hackathon choose a problem and build an AI-powered solution 💡 Idea Pitches & Team Matching bring your own idea or find collaborators on the day 💻 Hands-on Build Sprint prototype, test and iterate with fellow builders 🎤 Live Demos & Judging show what you built and share your approach 🏆 Awards details to be announced once confirmed 🍕 Pizza & Drinks refuel after the build sprint 🤝 Evening Networking connect with builders, exchange ideas and keep the conversations going until 22:00 Team size: 1–4 people. Solo participants are welcome and can join a team during matching. // FORMAT What to expect A focused day of hands-on AI building Short idea pitches and team matching Dedicated time to prototype and iterate Opportunities to meet other AI builders and exchange ideas Live project demos and judging Pizza and drinks An informal networking session to connect with fellow builders and continue conversations into the evening Come with an idea or an open mind. You don’t need a finished project to take part—just curiosity, a willingness to build, and an idea of what you’d like to explore. // AGENDA 09:45 👋 Doors Open 10:00 📋 Welcome & Challenges 10:20 🤝 Pitching & Team Matching 10:40 🚀 Hack Session (+ optional workshop) 11:00 🚀 Hack Session Begins 12:30 🌯 Lunch Break 13:00 🚀 Hack Session 15:30 🏆 Feature Freeze & Demo Prep 16:00 🏆 Live Demos 17:00 🏆 Judging & Community Networking 17:30 🏆 Awards & Closing Remarks 18:00 🤝 Pizza, Drinks & Open Networking 22:00 💻 Event Ends // FAQ New question? What is AI Builders? A self-organizing nonprofit community of 5000+ AI nerds 🤓. We're building a democratic AI platform, to make our community completely co-owned and co-governed by you (yes, all attendees). Will it be recorded? Yes, some sessions are streamed live and recorded. By attending, you consent to being photographed and filmed. Let us know if you don't want to be on camera. I'm not technical. Can I come? Yes, but to actually enjoy the meetup we recommend understanding basic LLM concepts: Agents, Embeddings, RAG, MCPs, Inference, Structured Output, Finetuning, APIs, Reinforcement Learning. Not sure what those mean? Ask any chatbot — that's literally what they're for. Can I get a free ticket? Can I volunteer? Money should never be the reason not to join. If you need a sponsored ticket, or want to help out by arriving 1.5h early to set up, message Martin. Can I demo, give a talk, or just help out? Message Martin if you want to shine ✨ on stage and grow your network — community demos are 10 minutes, builder demos are 15-20 minutes. What time does the hackday start? The hackday starts at 10:00 on Friday, 20 November. Do I need to form a team in advance? No! We'll have team formation at the beginning. You can also join solo. What should I bring? Bring your laptop, charger, and any APIs/tools you want to use. How do I submit my project? Submit via the hackday dashboard. Include a demo video and GitHub link. // What to bring Your laptop and charger An idea you’d like to explore or a willingness to join someone else’s Any tools or accounts you expect to use for building Please register early, as we expect the event to reach full capacity! If all spots are taken, we strongly encourage you to join the waitlist. Places may open up, and being on the list increases your chances of securing a spot—so don’t let a full registration discourage you from signing up! Registering also helps the organizers plan ahead. Further details about judging criteria, submissions, and any confirmed sponsor contributions will be shared ahead of the event. // VENUE & SPONSORS With ImmoScout24 & Nebius. Venue: ImmoScout24 Invalidenstraße 65, 10557 Berlin, Germany We look forward to hanging out with you! Thanks to our friends for hosting us in their beautiful space. This wouldn't be possible without our local hosts and organizers: Martin Kaiser, Lingkesh Vijayakumar, Andrei Marcut, Simon Schreiner and Vitalina Alipova.