Why it matters

Synthetic data reshapes training economics. Understanding shapes data strategy.

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The architecture

Prompt strong LLM to generate.

Filter for quality.

Mix with real data.

Synthetic data flowStrong LLMgeneratorFilter for qualitycurationMix with realavoid collapsePhi models + Nemotron + Llama post-training use synthetic heavily
Synthetic data.
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How it works end to end

Prompt engineering for diversity.

Filter with classifiers.

Mix with real data (avoid collapse).

Evaluate downstream.