{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"Tech Companies Tech Brief By HackerNoon","title":"OpenAI Open-Sources Privacy Filter, a Tiny Model That Scrubs PII Without an API Call","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/71ea78f5\"></iframe>","width":"100%","height":180,"duration":621,"description":"\n        This story was originally published on HackerNoon at: https://hackernoon.com/openai-open-sources-privacy-filter-a-tiny-model-that-scrubs-pii-without-an-api-call.\nOpenAI open-sourced Privacy Filter, a 50M-active-parameter model that detects and masks PII locally in one pass. Here's what's actually new, and what's hype.\nCheck more stories related to tech-companies at: https://hackernoon.com/c/tech-companies.\n            You can also check exclusive content about #openai, #open-source, #privacy-filter, #openai-privacy-filter, #tiny-model, #ai, #openai-open-sources, #hackernoon-top-story,  and more.\nThis story was written by: @abstraction. Learn more about this writer by checking @abstraction's about page,\n            and for more stories, please visit hackernoon.com.\nOpenAI released Privacy Filter under Apache 2.0 — a 1.5B-parameter (50M active) bidirectional token-classification model that detects and masks PII in text locally, in a single forward pass. It runs on a laptop, supports 128K context, hits 96% F1 out of the box, and is fine-tunable with minimal data. Eight entity categories: names, addresses, emails, phones, URLs, dates, account numbers, and secrets. It's context-aware (not regex), ships with a CLI and eval tooling, and slots into the same open-weight ecosystem as gpt-oss. The catch: multilingual support is thin, adversarial formatting breaks it, and the benchmark validation used OpenAI's own models to grade OpenAI's model.\n        \n        ","thumbnail_url":"https://img.transistorcdn.com/C_vxv2lH8gtsOvcitD9ucDTzz91dGKjjIsIoTf6C2-s/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9zaG93/LzQxNDI4LzE2ODM1/ODMzNTYtYXJ0d29y/ay5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}