Glossary

LLM (large language model)

Definition

A large language model is an AI system trained on huge amounts of text that predicts and writes language; it powers ChatGPT, Gemini, Claude and most AI assistants and chatbots.

Example

A support bot that understands “where’s my order?” written in five different ways, and answers in the customer’s language, is usually built on an LLM.

Common mistakes

  • Treating its answers as facts: a model can sound confident and still be wrong, so business data has to come from your own sources.
  • Sending it personal or confidential data without checking how the provider stores it.
  • Expecting it to know your prices and stock without connecting it to them.

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