AI doesn't truly remember earlier messages in long conversations—when the total text exceeds the model's context window, older exchanges simply vanish from its working memory. If you need continuity across extended conversations, you'll need to explicitly summarize key points, store decisions separately, or use tools that automatically retrieve relevant past information when needed.
A context window is the maximum amount of text an AI model can hold in active memory at one time, including everything you have typed and everything it has responded with during a session.
Understanding context windows helps you structure long planning sessions and complex project conversations so that critical details do not get dropped, keeping your AI assistant accurate and reliable throughout the task.
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