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Privacy Filter is an open-source model designed to detect and redact personally identifiable information (PII) before it ever reaches a cloud-based server.
OpenAI has open-sourced Privacy Filter, a bidirectional PII redaction model, under the Apache 2.0 license.
KEY POINTS
- Privacy Filter uses a Sparse Mixture-of-Experts architecture: only 50M of its 1.5B parameters are active per pass.
- It features a 128,000-token context window, enabling entire documents to be processed without splitting.
- The tool runs on standard laptops or in browsers via transformers.js and supports on-device data sanitization.
- OpenAI warns Privacy Filter is a redaction aid, not a safety guarantee, especially for high-risk deployments.
COMPANIES
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