Why the AI 'forgot' what you told it: context windows explained

Lesson 3 of how the AI thinks: the model has no memory of its own. What falls out of the window, what gets summarised, and how to keep what matters…

Aliteq
Sam Ortega · Build Editor

You now understand

The model only knows what's in its context window right now

You now understand

Long chats get trimmed (oldest first) or summarised

You now understand

A notes file and fresh chats keep key decisions in view

What this means for your app

Keep a short project notes file (what the app does, key decisions, what not to touch) and ask your tool to read it at the start of each session. Start a fresh chat for each new feature. Restate the…

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Why the AI 'forgot' what you told it: context windows explained

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