AI Agent Security — Attacks, Jailbreaking, and Defense · Guardrails and AI Firewall — Multi-Layer Defense

Llama Guard, NeMo Guardrails, and Guardrails AI — comparison and pitfalls

Guardrails and AI Firewall — Multi-Layer Defense

Introduction

The three most commonly used guardrail frameworks — Llama Guard (Meta), NeMo Guardrails (NVIDIA), and Guardrails AI (open-source) — differ in architecture, classification approach, and protection scope. This lesson compares their mechanisms, analyses real implementation pitfalls, and helps select the right tool for a specific scenario.