Prem Studio is an all-encompassing platform designed to streamline the end-to-end lifecycle of custom AI model development, created in collaboration with Fortune 50 companies and regulated industries to facilitate the construction, tuning, evaluation, and deployment of specialized models in a unified environment. The platform addresses the need for reliable, low-latency, and secure smaller models optimized for specific domains, as opposed to broad, generalized models, by offering an integrated approach that combines data management, training, and testing into a cohesive workflow. It enhances the AI development process by incorporating software engineering principles, providing capabilities like dataset management for creating reproducible datasets, continuous fine-tuning for adapting models to evolving data, integrated evaluation for performance benchmarking, and sovereign deployment to ensure compliance and data residency. With Prem Studio, organizations can treat AI development with the rigor of software engineering, and early access is now available for teams aiming to build robust, production-grade AI systems.