DadgogoAI Dictionary

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context window

noun \ˈkän-ˌtekst ˈwin-(ˌ)dō\

also context length

TopicModels & Behavior Senses1
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Definition of context window

  1. : the maximum amount of text, measured in tokens, that a model can consider at one time, including the conversation so far and its own reply

    • With a million-token context window, you can paste in an entire codebase.
    • Once the chat exceeds the context window, the earliest messages drop out.

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Related terms

token the basic unit of text a language model reads and writes: a whole word, part of a word, a… context engineering the practice of deciding exactly what information, instructions, tools, and history go into a… context rot the gradual decline in a model's accuracy and focus as its context window fills with more and… memory a feature that lets an AI keep information about a user or task across separate conversations… llms.txt a proposed plain-text file placed at the root of a website that gives AI models a short…

Cite this entry

"Context window." AI Dictionary, Dadgogo, https://dadgogo.com/dictionary/context-window/. Accessed 4 Oct. 2026.

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