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Open-weight model · Token classification

privacy-filter-multilingual

by OpenMed OpenMed/privacy-filter-multilingual

Fine-tuned openai/privacy-filter for fine-grained PII extraction across 54 categories in 16 languages. The base model ships with 8 coarse PII categories and English-only training.

Parameters1.4B
Context131,072
Weights2.8 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads161.2k

Runs On

What it takes to serve privacy-filter-multilingual (1.4B parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 2.8 GB 3.4 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 1.4 GB 1.7 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.7 GB 0.8 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.

Model Card

By OpenMed, published under apache-2.0, revision f914f18d909d.

Fine-tuned openai/privacy-filter for fine-grained PII extraction across 54 categories in 16 languages.

  • Base model: openai/privacy-filter — 1.4B-parameter MoE (50M active per token), BIOES token-classification head
  • Task: Token classification for PII detection (BIOES scheme)
  • Languages (16): Arabic, Bengali, Chinese, Dutch, English, French, German, Hindi, Italian, Japanese, Korean, Portuguese, Spanish, Telugu, Turkish, Vietnamese
  • Training data: Multilingual mix from AI4Privacypii-masking-200k, pii-masking-400k, and open-pii-masking-500k-ai4privacy, language-balanced
  • Recipe: opf train (OpenAI's official fine-tuning CLI) — full fine-tune, AdamW, balanced language sampling, 5 epochs, bf16
  • Labels: 54 PII categories → 217 BIOES classes (1 O + 54 × B/I/E/S)

The base model ships with 8 coarse PII categories and English-only training. This model trades that for a 6.75× more granular vocabulary spanning identity, contact, address, financial, vehicle, digital, and crypto labels — all evaluated across 16 languages.

Read the full model card (890 words)

Configuration

Architecture
OpenAIPrivacyFilterForTokenClassification
Context length (tokens)
131,072
Layers
8
Hidden size
640
Feed-forward size
640
Attention heads
14
Key/value heads
2
Head dimension
64
Vocabulary size
200,064
Experts
128
Experts active per token
4
Sliding window (tokens)
128
Model type
openai_privacy_filter

Identity and Version

Repository
OpenMed/privacy-filter-multilingual
Publisher
OpenMed
Task
Token classification
Modality
Text
Library
transformers
Parameters
1.4B parameters
Languages
ar, bn, de, en, es, fr, hi, it
Revision
f914f18d909d541d288dfda44a4d0b6bdb638d57
First published
2026-05-03
Last updated
2026-05-03

Files and Weights

6 files, 2.8 GB in total. The weights are 1 file totalling 2.8 GB in safetensors.

Weights1 file · 2.8 GB
Configuration1 file · 17.2 KB
Tokenizer2 files · 27.9 MB
Documentation1 file · 8.6 KB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights2.8 GB f0b62052eaab
config.jsonConfiguration17.2 KB
README.mdDocumentation8.6 KB
.gitattributesRepository1.6 KB
tokenizer.jsonTokenizer27.9 MB 0614fe83cada
tokenizer_config.jsonTokenizer234 B

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
2.8 GB
Download from OpenMed

Released by OpenMed through its official repository on Hugging Face. Read the license.

Built From

  • Derived from openai/privacy-filter
  • Trained on (disclosed) ai4privacy/open-pii-masking-500k-ai4privacy
  • Trained on (disclosed) ai4privacy/pii-masking-200k
  • Trained on (disclosed) ai4privacy/pii-masking-400k

Memory Requirements

PrecisionWeights in memory
As published2.8 GB
16-bit2.8 GB
8-bit1.4 GB
4-bit0.7 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Built on This Model

Questions About privacy-filter-multilingual

How much GPU memory does privacy-filter-multilingual need?

About 3.4 GB at 16-bit and 0.8 GB at 4-bit: the weights (1.4B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run privacy-filter-multilingual on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

Can I use privacy-filter-multilingual commercially?

Yes. privacy-filter-multilingual is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

What is privacy-filter-multilingual's context length?

131,072 tokens, from the maximum position embeddings in its published configuration.

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