Grounding DINO is an open-source model that uses free-form text prompts to detect and extract various features. As an open-set object detector, it can identify objects based on the given text input. The model generates bounding boxes around detected objects, which are then converted into polygons and returned as GIS features. These features correspond to the objects described in the text prompts and can include items such as vehicles, swimming pools, ships, airplanes, solar panels, and more.