LoRA vs RAG decision card

| Need | Pick |

|------|------|

| Facts change weekly | **RAG** |

| Stable docs, new tone | **LoRA** |

| SKU / error codes | **RAG + hybrid search** |

| Full new behavior | Eval first — rarely full fine-tune |

**Related:** `train-lora-adapter` how-to · glossary `adapter`