An LLM in artificial intelligence refers to a Large Language Model, such as ChatGPT, GPT-4, Claude, or Gemini. These models are:

• Trained on vast amounts of text data (books, websites, code, etc.).
• Designed to understand and generate human-like language.
• Built using a type of neural network architecture called a Transformer.
• Capable of tasks like answering questions, translating text, writing essays or code, and even reasoning.