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AI and Data

What Is a Context Window?

The amount of text an AI model can consider at once, measured in tokens. Larger windows let a model read longer documents in one pass.

Legal Tech GlossaryBy The Circle Desk

Why It Matters

Context windows decide whether a tool can review a 200-page agreement whole or must split it into pieces. Bigger windows help, but models can still miss details buried in the middle of very long inputs, so long-document answers still need checking.

Related Terms

LLM (large language model)
The type of AI model behind ChatGPT, Claude, Gemini and most legal AI assistants, trained on very large amounts of text to predict and generate language.
Tokens
The small chunks of text, roughly three quarters of a word on average, that AI models read and write. Usage and limits are measured in tokens.
RAG (retrieval-augmented generation)
An AI technique that first looks up relevant documents, such as cases or your contracts, and then has the model answer from what it found.

General information, not legal advice. Part of the Legal Tech Glossary, 173 terms in plain English.