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What a language model actually is

Why the machinery is worth an hour of your time

Test your instincts before you learn anything

The prediction engine at the heart of every chatbot

Checkpoint: what the engine does

How text becomes numbers

Tokens: why the model never sees your words

Embeddings: turning meaning into coordinates

Checkpoint: tokens and embeddings

How the model decides what comes next

Attention: how the model works out what matters

Temperature: why the same prompt gives different answers

Checkpoint: attention and sampling

The machinery underneath every chatbot: tokens, embeddings, attention, and next-token prediction, explained in plain language with no code and no maths.

A language model is not a search engine, a database, or a person. It is one specific machine doing one specific thing, extremely fast.

Inside the Machine

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