Data Quality: The Most Underappreciated High-Leverage Factor in Model Performance
schwarzjn_ · x · 2026-09-01
Experienced practitioners highlight that data quality is often the most underappreciated yet highest-leverage factor in foundation model training.
Citing Sarah Hookr from Adaption.ai, model performance only saw significant movement when data quality was controlled and the model was optimized alongside it. The core takeaway is simple: Control the full loop, and you control the outcome.
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