# LLM (Large Language Model)

> Source: Show Up On AI · https://showuponai.com/glossary/llm

The AI technology powering generative search engines. LLMs like GPT-4, Claude, Gemini, and LLaMA are trained on vast amounts of text data and can generate human-like text responses. Understanding how LLMs evaluate sources is fundamental to GEO.

## Related terms

- [Generative Engine](https://showuponai.com/glossary/generative-engine)
- [Parametric Knowledge](https://showuponai.com/glossary/parametric-knowledge)
- [RAG (Retrieval-Augmented Generation)](https://showuponai.com/glossary/rag)


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