Large language models (LLMs) are increasingly being used to generate text-based advice across urban design, planning and public health. In urban design, they can recommend changes to transportation infrastructure, land use, walkability, pedestrian environments and green spaces to support health.Large language models (LLMs) are increasingly being used to generate text-based advice across urban design, planning and public health. In urban design, they can recommend changes to transportation infrastructure, land use, walkability, pedestrian environments and green spaces to support health.Machine learning & AI[#item_full_content]