OpenAI Privacy Filter for Local PII Detection and Redaction
Melvin Vivas · X post · 2026-04-23 · Open on X
Topics: AI Safety, Security & Guardrails · Level: beginner
Summary
OpenAI released Privacy Filter, a small open-weight model that detects and redacts personally identifiable information (PII). Because it runs locally and uses context-aware detection, sensitive data does not have to leave your machine.
Key points
- Privacy Filter detects and redacts PII.
- It has 1.5B total parameters with 50M active.
- It runs locally and uses context-aware detection.
- Running locally means sensitive data does not need to be sent to an external service.
Resources mentioned
- OpenAI Privacy Filter · tool · openai.com · free
Small open-weight OpenAI model for context-aware PII detection and redaction.
Also in: OpenAI Privacy Filter: An Open-Weights PII Detection Model (Melvin Vivas on X · notes) - OpenAI · tool · x.com · free
An AI model provider whose models can be used through managed connectors.
Also in: Creator's favorite OpenAI DevDay announcements (Melvin Vivas on X · notes), OpenAI Agents API with Bring Your Own Sandbox as a backend for a 'software factory' (Melvin Vivas on X · notes), Building Software Factories on the OpenAI Agents API (Codex-Powered) (Melvin Vivas on X · notes), Coworker: Free Local-First Desktop App for Running AI Agents (Melvin Vivas on X · notes) and 11 more
Try this
- Add a local PII-redaction step with Privacy Filter before sending user data to an LLM.
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