How to build scalable web apps with OpenAI's Privacy Filter

OpenAI released Privacy Filter on the Hub this week: an open-source personally-identifiable information (PII) detector that labels text across eight categories in a single forward pass over a 128k context. Model card . We spent a few hours building with it and landed on three apps that each reveals a different slice of what it can do. Document Privacy Explorer : drop in a PDF or DOCX, read the document back with every PII span highlighted in place. Image Anonymizer : upload an image, get it back with redacted black bars over names, emails, and account numbers. The image is also editable on a canvas so you can make your own annotations before downloading. SmartRedact Paste : paste sensitive text, share a public URL that serves the redacted version, keep a private reveal link for yourself. All three are built on gradio.Server , which lets you pair custom HTML/JS frontends with Gradio's queueing, ZeroGPU allocation, and gradio_client SDK. …

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Announced: 27 Apr 2026 00:00 UTC

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