OpenAI Just Released a Privacy Filter. Here's What It Can't Do.

OpenAI released their Privacy Filter this week: a 1.5 billion parameter open-source model that detects and redacts PII from text before it reaches a language model. It runs locally, it's Apache 2.0, and it scores 96% F1 on the PII-Masking-300k benchmark. It's genuinely good work, and the timing is n