Distillation study finds teacher lineage matters more than benchmark scores
rohanpaul_ai · x · 2026-08-30
A study on model distillation reveals:
- Reasoning over Knowledge: Student models copy the teacher's reasoning process, not just its knowledge. Thus, teacher lineage matters far more than benchmark scores.
- Weak Same-Family > Strong Different-Family: A weaker teacher built from the student's base model outperforms a stronger teacher from a different model family.
- Data Quality Insignificant: Training data quality (e.g., problems the teacher can/can't solve) barely affects the outcome; even grade-school math data yields 80% of the benefit.
- Teaching the Unsolvable: A teacher can teach a problem it cannot solve itself, as what is transferred is a habit of reasoning.
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