# Token

A chunk of text — roughly a word or part of one. Models measure input and output length in tokens.

Also called: token, tokens.

## Covered in these lessons

- [Give it the right context, not all of it](https://zero2vibecode.com/learn/claude-code/1-2-giving-context)
- [Context is everything](https://zero2vibecode.com/learn/vibe-coding-101/2-1-context-is-everything)
- [Run it and read the error](https://zero2vibecode.com/learn/vibe-coding-101/3-2-run-it-and-read-the-error)
- [The review checklist](https://zero2vibecode.com/learn/vibe-coding-101/3-3-the-review-checklist)

Source: https://zero2vibecode.com/glossary/token