Omna · Python

Mask PII Before You Call OpenAI

OpenAI's API will happily ingest patient names, MRNs, and account numbers — and may log them. Mask locally first.

The API

import polars as pl, omna
from openai import OpenAI

safe = pl.read_parquet("notes.parquet").omna.mask_pii()
client = OpenAI()
for row in safe.iter_rows(named=True):
    client.responses.create(model="gpt-5", input=row["note"])

Try it now

pip install omna