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Knowledge Distillation

Knowledge distillation trains a small student model to imitate a larger teacher, using the teacher's soft probability distribution (or internal features) as a richer training signal than hard labels. A student trained this way typically beats an identical model trained from scratch on the same data, because the soft targets encode the teacher's learned similarity structure. Applied AI interviews probe it because it is the main lever for shrinking a capable model into something cheap to serve, and because reasoning distillation and the legal terms around teacher outputs are live issues in 2026.

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