Demystifying Artificial Intelligence: Key Concepts with Examples in Rheumatology

Artificial intelligence (AI) refers to a broad class of computational methods to perform tasks that typically require human intelligence, such as learning patterns, reasoning, and problem solving. AI is increasingly applied across rheumatology research and clinical practice to analyze complex data and support clinical decision-making, yet its underlying concepts are often perceived as opaque or inaccessible. This aim of this article is to demystify foundational AI concepts by defining core terminology and describing major learning paradigms and analytical methods, highlighted through clinically relevant examples from rheumatology. We explain how modern AI models differ from traditional analytical approaches.