Meet the builders, exchange ideas, and leave with something new. Around the world or online.
On October 28, AI builders will spend a full day developing ideas into projects, with limited spots and free applications. Attendees will collaborate with other AI builders in a hands-on build session.
Explore eventMongoDB will host a one-day hackathon where teams of up to four build Atlas-powered agents for real-world workflows, with a focus on keeping data current and ensuring observability and control. Approved participants will develop prototypes with the potential to win a prize.
Explore eventMollie and Bonnie engineers will share practical lessons on production fraud-model feature selection, interpretable machine-learning predictions, and rigorous code review in the AI-generated-code era. Talks by Nicole Van de Weijer, Tim Haarman, and Anne Lohmeijer will combine hands-on engineering experience with time for networking.
Explore eventBuilders will spend a full day creating agentic applications with You.com and AWS, developing real-world use cases into working demos with hands-on support. The day will wrap with team pitches showcasing what they build.
Explore eventCoMotion, Nucleate, and Plug and Play will host a curated speed-dating event connecting founders building AI-driven healthcare, therapeutics, diagnostics, and med tech solutions with active VCs, angels, and strategic investors. Founders will pitch across multiple rounds, gaining direct investor feedback and opportunities to build valuable relationships.
Explore event42AI’s Impact & Governance team will showcase four AI projects in accessibility, food information, content recommendations, and water-leak detection, with demos and discussion of their real-world benefits and limitations. Project developers Mehdi Desmartin (SignBridge), Raphaël Bournhonesque (Open Food Facts), Lê Nguyên Hoang (Tournesol), and Hubert Baya Toda (Leakmited) will share practical lessons on designing AI for positive impact.
Explore eventThe upcoming Mindstone AI Meetup will feature practical LLM-building lessons, an AI-powered task demo, and talks on consciousness, society, and why many AI efforts stall at the first level. Speakers including Jason Holloway, Drue Steele, and Andy Mills will share hands-on insights and perspectives, followed by informal networking over pizza and drinks.
Explore eventThis hands-on workshop will explore Jev, a “System One” decision model designed to help AI agents make fast, low-cost decisions safely and locally while supporting creative problem-solving. Attendees will get practical experience applying the model to agent decision-making.
Explore eventAI Field Notes will bring together engineers, researchers, technical leads, founders and product professionals building and running AI systems at scale for an informal evening of conversation and shared experience. The community’s monthly meet-ups will feature lightning talks and deep dives into topics including AI design, energy and video games.
Explore eventAI Security Engineers will gather for an evening of learning and conversation about emerging challenges in AI security and agents.
Explore eventThis session will explore how modern leaders can use AI to build a shared “company brain” that supports smarter decisions and more effective work.
Explore eventAI Builders will host an informal meetup for developers, product professionals, data specialists, ML engineers, and founders with some LLM knowledge, featuring AI and builder-tool demos from EU and Silicon Valley leaders. The self-organizing nonprofit community of 5,000+ AI enthusiasts will also make time for networking, pizza, and drinks.
Explore eventThe event will examine whether AI can help prevent war, or make conflict faster, cheaper, and more autonomous.
Explore eventA builder-first evening will feature live product and engineering demos, practical lessons on what worked and broke, and time for technical Q&A. Expect a code-forward focus on implementation details.
Explore eventOpentrons Field Applications Scientist Maya Vasinthascha will demonstrate how Opentrons AI can generate scripts for Flex and OT-2 systems, with practical tips for translating bench protocols and quality-checking generated scripts. Her experience in protocol development and technical training will bring a hands-on perspective to lab automation.
Explore eventEl Build Day de Hacktoberfest México convertirá ideas en proyectos funcionales con IA de código abierto, mentoría y talleres prácticos; los equipos presentarán sus demos ante jueces y competirán en siete retos por premios y beneficios valorados en cerca de USD 52,700. Organizado por Mobil3 y Major League Hacking, el evento reconocerá la calidad técnica, creatividad, utilidad y contribuciones open source.
Explore eventStudents will get an inside look at WHOOP, meeting the founders, operators, and recruiters building AI and performance technology while learning how a fast-growing company works. Student status will be confirmed with an .edu email.
Explore eventAI House’s Halloween-edition Pitch Please will feature early-stage AI founders presenting to expert judges, including AI House and AI2 Incubator leaders, with candid feedback and audience voting. The session will also offer networking with founders and angel investors, plus opportunities for selected startups to pursue follow-up meetings on investment and incubation.
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