A test of OpenAI's Privacy Filter reveals that while the model effectively handles common PII redaction, it struggles with internal IDs, fragmented numbers, and context-lacking text, highlighting the need for domain-specific rules and thorough in-domain evaluation before deployment. This insight underscores the importance of a layered approach to PII redaction, including deterministic regex rules and fine-tuning for specialized contexts.
Read the full article at Towards AI - Medium
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