From left to right: a square, a cube and a tesseract. The square is two-dimensional (2D) and bounded by one-dimensional line segments; the cube is three- dimensional (3D) and bounded by two-dimensional squares; the tesseract is four-dimensional (4D) and bounded by three-dimensional cubes. Achieve instant insights with the new Dimensions AI summarization feature. Quickly perform AI-powered analyses to gain insights into the content and topics of most interest to your research area. Dimensions in math refer to the measure of the size of an object using length, breadhth, height, etc. Learn the types of objects based on dimensions , and examples. Dimensions Research GPT Enterprise on ChatGPT is a powerful AI tool that uses scientific data from Dimensions ' full database, including publications, clinical trials, patents, and grants data, to help transform your research discovery.