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Chapter 1 of 17 · Level 1 · Foundations: How LLMs Work

Inside a Language Model

What an LLM actually is: next-token prediction, tokens, embeddings, attention, and the context window.

1.1
What an LLM Actually Is
A language model does one thing. It predicts the next token. That single trick is the engine under every agent you will build, and knowing it is what separates steering a model from guessing at it.
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