MODELS
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Documentation

Guides for deploying models, connecting the OpenAI-compatible API, and configuring routing, protection, and retrieval.

LLM Firewall

Protect model traffic

Evaluate supported chat requests against reusable policies before they reach a model.

Explore LLM Firewall

How protection works

A firewall combines rules, a judge model and an enforcement mode. The client sends the firewall slug with the request; QDivZero evaluates the input before inference.

Choose the mode

Audit records decisions without interrupting traffic. Block rejects matching requests. Allow limits traffic to requests that satisfy the configured policy.

Keep policies reusable

Maintain rules independently and combine them into different firewalls for products, environments or risk profiles.