# Large Language Model

> A model trained on large amounts of text and other data to understand and generate language.

- Category: Models & Training
- Stage: Established
- Also called: LLM, Language model
- Canonical: https://www.joelcsaji.com/ai-dictionary/large-language-model

## Plain English

It is the engine behind tools that chat, summarize, write code, and answer questions.

## Example

ChatGPT, Claude, Gemini, and many coding assistants are built around large language models.

## Why it matters

LLM is one of the most common AI terms, and many newer terms describe systems built around LLMs.

## Related

- [Foundation Model](https://www.joelcsaji.com/ai-dictionary/foundation-model)
- [Token](https://www.joelcsaji.com/ai-dictionary/token)
- [Prompt](https://www.joelcsaji.com/ai-dictionary/prompt)

## Mentioned in

- [iOS 27, iPadOS 27, macOS 27, watchOS 27 and tvOS 27](https://www.joelcsaji.com/blog/ios-27-ipados-27-macos-27-watchos-27-tvos-27)

## Sources

- [OpenAI: Text Generation](https://platform.openai.com/docs/guides/text-generation)
- [OpenAI: Advanced Text Generation](https://platform.openai.com/docs/guides/text-generation/parameter-details)