Why it matters
FT scaling differs from pretraining. Understanding shapes strategy.
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The architecture
SFT: quality data > quantity.
1k-10k high-quality often enough.
DPO: preference pairs scale differently.
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How it works end to end
LIMA paper: 1k examples for good alignment.
Alpaca / OpenAssistant: larger + noisier.
DPO scales somewhat with data.