# LLM (Large Language Model)

> What a Large Language Model is, how it sits behind AI assistants like ChatGPT, and why your machine-readable facts determine how it represents your business.

Synonyms: Large Language Model, LLM, language model, language models, large language models

A Large Language Model – LLM for short – is the technology at the core of modern AI assistants like ChatGPT, Gemini or Perplexity. It was trained on enormous amounts of text and learned to predict patterns in language. From this comes the ability to answer questions, write texts and explain connections – in natural language, without hard-coded rules.

For you as a business, the key point is this: an LLM “knows” nothing about you except what it can infer from available sources. The clearer and more machine-readable your digital foundation is, the more reliably a model represents your business – and the less it guesses.

LLMs rarely work alone. For current answers they combine their training knowledge with passages retrieved live. Anyone who wants to be visible to these models makes sure their own facts are clean, structured and up to date.

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Source: https://btlabs.dev/en/glossary/llm-large-language-model
Last-Modified: 2026-08-16T05:11:58.061Z
Languages: [de](https://btlabs.dev/llms/de/glossary/llm-large-language-model) · [it](https://btlabs.dev/llms/it/glossary/llm-large-language-model)
See also: [llms.txt](https://btlabs.dev/llms.txt) · [ai.txt (Policy)](https://btlabs.dev/ai.txt) · [identity.json](https://btlabs.dev/identity.json)