Large language models have revolutionized the field of natural language processing (NLP) in recent years. These models have achieved state-of-the-art results in various NLP tasks, such as language translation, text summarization, and conversational AI. However, most existing large language models are built on top of pre-existing architectures and are trained on massive amounts of data, which can be costly and time-consuming. The authors of the paper aim to provide a step-by-step guide on building a large language model from scratch, making it accessible to researchers and practitioners.