GEMSai is an AI-powered geotechnical engineering and foundation analysis software platform designed to help engineers perform advanced foundation modeling, analysis, and design with greater accuracy and efficiency. The platform combines finite element modeling (FEM) techniques with AI-assisted workflows to support the analysis of shallow foundations, pile foundations, raft foundations, pile groups, and offshore pile systems. GEMSai provides specialized modules for land-based, bridge, waterfront, and offshore foundation projects while supporting discrete spring-bed models, elastic half-space models, and multilayered soil analysis. The software is available for Windows, macOS, and cloud environments, giving engineers flexible deployment options for different project requirements and workflows. GEMSai is designed to streamline complex geotechnical engineering processes while improving precision, speed, and usability for foundation analysis and design tasks.