Token
Category: Models“TOH-kun”
A small chunk of text — roughly part of a word — that an AI reads and writes one piece at a time.
Lesson #3: Under the Hood: Models, Meaning & Speed →Bricks in a wall: the AI doesn't see the wall, it lays one brick after another.
The word 'unbelievable' being handled as a few pieces, not one word.
A long spec sheet costing more to process because it's simply more tokens.
Your AI bill going up because every chat message is priced per token.
Tokens are how AI is measured and billed — they explain both cost and length limits.
A token is a small chunk of text; AI reads, writes, and bills by them.
Paste a page of your own writing into an AI tool and ask how many tokens it is.
Hover or focus a choice to preview the new review date.
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Related terms
Picked automatically from the same category and the ideas this term shares.
Hand-picked pair
The AI's brain that has learned from lots of information.
Hand-picked pair
How much information an AI can hold in mind at one time.
Hand-picked pair
The instructions or question you give an AI so it knows what you want.
Same category: Models
An AI that can handle more than one kind of input — text, images, audio, or video together.
Explained using this term
What you pay each time an AI produces an answer, usually measured by how many tokens go in and out.
Same category: Models
A math structure loosely modeled on the brain, made of layers that pass signals along to spot patterns.