London will welcome AI enthusiasts, developers, and tech innovators on December 1, 2025, for a full-day event focused on Caffeine, a platform billed as the first complete tech stack for AI that allows users to build through conversation alone.
The programme will feature keynotes, presentations, and panels from leading figures in AI, including representatives from Bloomberg and Google. Attendees will have the chance to experience the platform firsthand through live demonstrations and dedicated Caffeine Experience Pods. A highlight of the day will be the Caffeine Promptathon, where participants, technical or non-technical, can create applications solely through natural language prompts. Participants can enter two tracks: commerce apps, which have economic functionality such as marketplaces or yield managers, and personal apps for individual or small-team use. The Promptathon carries a $2,000 prize pool, including $1,000 for first-place winners in each track, alongside exclusive swag bags for all entrants.
The afternoon programme includes a welcome and networking session, an All Stars Panel, a keynote address, and the Promptathon awards ceremony. Registration is required for all attendees, with entry granted on a first-come, first-served basis. Badge collection begins at 9:30, and photography and video recording will take place during the event.
Organisers emphasise the importance of a collaborative and harassment-free environment and encourage attendees to engage respectfully during networking sessions. Participants are advised to bring laptops for full participation in the Promptathon, as mobile devices will not support all features.
The London Caffeine AI event aims to provide an interactive environment where attendees can explore the “self-writing internet,” experiment with AI-driven app creation, and connect with peers shaping the future of technology.
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