GuardionAI vs. PromptArmor
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 | PromptArmor |
|---|---|---|
| Primary Focus | Agent Runtime Governance | Indirect Injection Defense |
| 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.) • PromptArmor 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 PromptArmor if...
- •Specialized in indirect injection
- •Its pricing model (Quote) fits your procurement preferences
Frequently asked questions
What is PromptArmor?
Protects enterprises from novel threats like indirect prompt injection and data exfiltration. It is categorized under Runtime Guardrails & AI Firewall in the Guardion AI Security Index.
Is PromptArmor open source?
No, PromptArmor is a commercial product (Quote).
What are the best PromptArmor alternatives?
Teams evaluating PromptArmor 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 PromptArmor compare to GuardionAI?
PromptArmor focuses on indirect injection defense, while GuardionAI is an agent runtime governance platform ("EDR for AI agents") that governs every agent tool call inline with sub-130ms guardrails latency.