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What is Context window?

The context window is how much text a model can consider at once — your messages, the page you share and its own replies. It's measured in tokens. Bigger windows let a model read longer documents, but very long inputs can still dilute its attention.

Updated November 13, 20262 min read

In practice

Share only the relevant page or section for sharper answers, and start a new chat when switching topics.

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