AI encompasses a wide range of technologies, including logical and statistical approaches, generative AI, and LLMs, which can be used in various stages of software development and delivery, such as code generation, debugging, documentation, testing, and monitoring. While LLMs provide an interface for generating human-like text, they are not the only tool available, and combining different types of AI methodologies can expand coverage, intelligence, and opportunities for application security. Narrow AI is used in specific tasks, logical AI uses logic to represent problems and manipulate solutions, and generative AI produces new content similar to training data, while LLMs generate human-like text based on given prompts.