Open Clinical Annals, an online medical/scientific journal, aims to disseminate well-conducted research at no cost to readers or authors. This case study explores its unique zero-cost operations model and analyzes its first 100 days, highlighting its novel approach and publications. Methodological outlines unveil strategic launch procedures, showcasing diverse publications and growing engagement metrics. Challenges ahead include sustaining the no-cost model and scaling operations. The journal seeks to gather more data to develop a proven model for Platinum Open Access publishing.