OpenAI Privacy Filter alternatives — 6 tools compared (2026)
OpenAI Privacy Filter is LLM-powered and accurate but requires an API key and per-token cost. Here are six alternatives.
Microsoft Presidio
Open-source Python library. Runs on-premise, free, supports 20+ entity types.
AWS Comprehend PII
Managed API detecting 16 PII types. Integrates with AWS services.
Nightfall AI
Enterprise DLP platform starting at around ,000/year.
spaCy NER
Free transformer NER. Requires ML infrastructure.
GLiNER
Zero-shot NER with near-LLM accuracy at lower inference cost.
Scrubadub
Fast Python library using regex and simple ML. Free but lower accuracy.