What is Privian
Privian is a privacy-first LLM gateway that masks personal and sensitive data in prompts before forwarding them to a provider, then rehydrates the response.
What it does
Your application sends a prompt to the Privian gateway. Privian deterministically detects entities like emails, phone numbers, names, payment card numbers, IBANs, IP addresses, JWTs, and provider API keys, replaces each with a stable placeholder (for exampleEMAIL_1, PERSON_1), forwards the masked prompt to the LLM provider, and then rehydrates the placeholders in the response before returning it to you.
Where it sits
your app → Privian gateway → LLM provider
↑ ↓
mask PII rehydrate
& secrets responseWhat it is not
- Not an LLM. Privian does not generate text; it brokers requests to providers.
- Not a content moderation system.
- Not a regulated-compliance product (no claims of HIPAA, SOC 2, ISO, or PCI today — see Compliance).
- Not a prompt storage or analytics platform — raw prompts are never persisted.