opf-ru-v2

Fine-tuned OpenAI Privacy Filter (OPF) checkpoint for RU PII detection.

Released anonymously alongside an ACSAC 2026 submission. See the paired code repository for label space, training data construction, evaluation harness, and reproducibility instructions.

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from opf import PrivacyFilter
pf = PrivacyFilter.from_pretrained("pii-anon/opf-ru-v2")
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1B params
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BF16
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