How AI Works Under the Hood: LLMs Explained with Code

This post was originally published on my blog: nitayneeman.com How do Large Language Models (LLMs) like GPT, Claude and Gemini actually work? How does a text prompt turn into a coherent response? Software development in 2026 relies heavily on AI tools that write code and even generate entire applications. These tools are powered by Large Language Models (LLMs), which are neural networks trained on massive amounts of text data that can understand and generate human language. Model families like G