GuardionAI vs. Preamble
Which AI security platform is right for your team? We break down the differences in features, latency, and protection scope to help you decide.
| Feature | GuardionAI | Preamble |
|---|---|---|
| Primary Focus | Agent Runtime Governance | Policy & Safety Guardrails |
| Tool Call Protection | Deep Inspection | Not documented |
| Deployment | Inline Security Gateway / Guard API / Claude Code plugin | Cloud API |
| Guardrails Latency | <130ms policy decision | Low |
| Detection Accuracy | 96.3 F1 on the Prompt Security Leaderboard with 0.02% false positives | Not published / varies by deployment |
| Compliance | GDPR-ready, HIPAA-ready, LGPD-ready, SOC 2 Type II (in progress) | SOC2 |
GuardionAI figures from guardion.ai (Policy engine decisions return in under 130ms — 20× faster than cloud provider guardrails.) • Preamble figures from public documentation.
Choose GuardionAI if...
- •You are building autonomous AI agents that use tools, MCP servers, or APIs.
- •Latency is critical for your application (Policy engine decisions return in under 130ms — 20× faster than cloud provider guardrails).
- •You want DLP for PII and secrets before data leaves your org.
- •You need a single hub to investigate and respond to agent incidents.
Choose Preamble if...
- •Focus on policy enforcement
- •Its pricing model (Subscription) fits your procurement preferences
Frequently asked questions
What is Preamble?
Provides runtime guardrails for RAG, LLMs, and AI agents, enforcing safety and privacy policies. It is categorized under Runtime Guardrails & AI Firewall in the Guardion AI Security Index.
Is Preamble open source?
No, Preamble is a commercial product (Subscription).
What are the best Preamble alternatives?
Teams evaluating Preamble most often compare it with Lakera (Check Point), Meta (Llama Guard), Prompt Security (SentinelOne), and GuardionAI — all listed under Runtime Guardrails & AI Firewall.
How does Preamble compare to GuardionAI?
Preamble focuses on policy & safety guardrails, while GuardionAI is an agent runtime governance platform ("EDR for AI agents") that governs every agent tool call inline with sub-130ms guardrails latency.