Large language model
Also called LLM.
A large language model is an AI modelAn AI model is the trained system an application uses to make predictions or generate responses. trained on large amounts of text and other data to understand and generate language.
Example
You paste a meeting note and ask for five bullets. The large language model writes the bullets from that note and from its training. You still check the names.
Why it matters
People shorten it to LLM. The model works on tokens, not on whole documents as a single lump. It can write fluent language and still be wrong about a fact.
Common confusion
LLM names the model family. It is not a synonym for an agent, a chatbotA chatbot is software that communicates through conversation, from scripted replies to AI assistance and actions. product, or an AI tokenAn AI token is a unit a model uses to process content. For text, a token may be a word, a word fragment, or punctuation..
Sources
Updated September 30, 2026.