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Context Window
Models“KON-text WIN-doh”
3/5 · Trickier
How much information an AI can hold in mind at one time.
Lesson #2: Working With AI: Prompts, Data & Guardrails →Think of it like…
A desk that only fits so many papers before something has to come off.
Everyday example
A long chat where the AI forgets what you said at the very beginning.
Construction example
Pasting a 200-page spec book and the AI only using the part that fits.
Business example
An AI summarizing a long contract but missing details from page one.
Why this matters
Knowing the limit explains why AI 'forgets' — and why feeding it the right pieces matters.
One-sentence summary
The context window is how much the AI can keep in mind at once.
Try it yourself
In a long AI chat, ask it to repeat your first instruction. See whether it still remembers.
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