AI World Clocks (clocks.brianmoore.com)

AI World Clocks is a live creative experiment that asks nine different AI models, every minute, to each generate an HTML/CSS analog clock for the current time. Each model gets up to 2,000 tokens and the same prompt: produce only HTML/CSS for a responsive analog clock on a white background, including a CSS-animated second hand and no extra commentary. The project—created by Brian Moore and inspired by Matthew Rayfield—continuously renders a rotating gallery of model-generated clocks and demonstrates how different models approach the same front-end coding task. The significance is twofold: it’s both an artistic display and a lightweight, real-time benchmark for LLM capabilities in producing runnable UI code and animations. Technically, the prompt forces models to handle DOM structure, responsive layout, CSS transforms/animations, and precise time-driven visuals within a token budget, exposing strengths and failure modes (variations in semantics, CSS best practices, or non-compliant outputs). The stream highlights how prompt constraints (return only code) and token allowance influence output fidelity, making the project useful for prompt-engineering studies, model comparison, and exploring safety/reliability when executing model-generated front-end code in browsers.