SEAG uses a locally fine-tuned 3-4B model to replace sensitive entities with consistent aliases in RAG prompts, letting external LLMs answer while keeping original values hidden; reported User accuracy is over 80% but full-entity hiding accuracy is only 75-78%.
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Privacy-Preserving RAG by Concealing Sensitive Information from External LLMs
SEAG uses a locally fine-tuned 3-4B model to replace sensitive entities with consistent aliases in RAG prompts, letting external LLMs answer while keeping original values hidden; reported User accuracy is over 80% but full-entity hiding accuracy is only 75-78%.