DadgogoAI Dictionary

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context window

noun \ˈkän-ˌtekst ˈwin-(ˌ)dō\

also context length

TopicModels & Behavior Senses1

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… long-horizon model an AI model designed to work autonomously on a goal through many steps and repeated attempts… sparse attention an attention mechanism that allows each query to attend to only a selected subset of tokens or… code mode a tool-use pattern in which an AI model writes a program that discovers, combines, and calls… context library a curated collection of institutional, procedural, or domain knowledge that AI agents can… next edit prediction an AI coding-assistant capability that predicts and proposes the developer's next logical code… multi-agent tax the extra tokens, computation, time, complexity, or loss of performance caused by coordinating… context compaction the process of replacing part of a long AI conversation or agent trajectory with a shorter… token budget an allowance or limit on the number of tokens an AI system may process or generate during a… context language model a language model designed to manage its own working context by reading, retaining… in-context reinforcement learning the ability of a sequence model or agent to improve its behavior during interaction by using… memory wall a performance limit reached when a processor or AI accelerator can perform calculations faster… KV cache compression the reduction of the memory and data-movement cost of a language model's KV cache, for example…

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"Context window." AI Dictionary, Dadgogo, https://dadgogo.com/dictionary/context-window/. Accessed 24 Oct. 2026.

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