Understanding the Architecture of Large Language Models: A Deep Dive into Transformers Large Language Models (LLMs) have revolutionized natural language processing (NLP) and artificial intelligence. They power applications ranging from chatbots and content generation tools to complex code completion engines. At the heart of these models lies the Transformer architecture , which has redefined how machines understand and generate human-like text. In this deep dive, we will explore the core components of Transformer-based models, how they process language, and why they are so effective. Along the way, we’ll provide a Python code example to illustrate how a Transformer works in practice. 1. What Are Transformers? Before the Transformer, models like RNNs (Recurrent Neural Networks) and LSTMs (Long Short-Term Memory networks) were used for NLP tasks. However, these architectures had sequential dependencies , making them slow and inefficient for large-scale learning. Transf...