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What is a large language model?

A large language model, or LLM, is a model trained on language-related data at scale to predict or generate sequences of tokens.

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A beginner learning path: understand the idea, follow an everyday example and check your understanding. Read the three lessons in order.

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01 · Understand the idea

In simple words

A large language model, or LLM, is a model trained on language-related data at scale to predict or generate sequences of tokens. Chat assistants often use LLMs together with instructions, tools and other software. Fluent language does not guarantee correct facts or access to current information.

Words to know

LLM: large language model. Inference: using a trained model to produce an output.

Pause here and explain the definition in one sentence without copying it. The aim is to describe what the system does, not to memorise an impressive phrase.

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