Context windows are not arbitrary numbers; they fall out of attention's quadratic cost, KV-cache memory, and how the model was trained. The signal is naming all three causes and matching each to the technique that extends it.
Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.
Context windows are not arbitrary numbers; they fall out of attention's quadratic cost, KV-cache memory, and how the model was trained. The signal is naming all three causes and matching each to the technique that extends it.
No lesson covers this question directly yet. These teach the surrounding topic from the beginning.
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