Promptfoo Guardrails vs Sun.Security Sun: side-by-side comparison (2026)
Promptfoo Guardrails is a commercial LLM guardrails solution by Promptfoo. Sun.Security Sun is a commercial agentic AI security solution by Sun.Security. Features, integrations, deployment and the company behind each one, side by side.
Adaptive LLM guardrails that self-improve via red team feedback loops.
Security platform for discovering, assessing, and controlling AI agent behavior
Side-by-side comparison
Feature
Promptfoo Guardrails
Sun.Security Sun
Pricing model
Commercial
Commercial
Category
LLM Guardrails
Agentic AI Security
Deployment and fit
Deployment type
Hybrid
Hybrid
Company size fit
Startup, SMB, Mid-Market, Enterprise
Mid-Market, Enterprise
Company
Company
Promptfoo
Sun.Security
Use cases and capabilities
LLM Guardrails
Yes
No
LLM Security
Yes
No
AI Firewall
Yes
No
Prompt Injection
Yes
Yes
GenAI Security
Yes
No
Red Team
Yes
No
Generative AI
Yes
Yes
Continuous Testing
Yes
No
Adversarial ML
Yes
No
AI Governance
Yes
Yes
Agentic AI Security
No
Yes
MCP Security
No
Yes
AI Observability
No
Yes
Anomaly Detection
No
Yes
Visibility
No
Yes
Runtime Security
No
Yes
Data Exfiltration
No
Yes
Core features
6 features listed
5 features listed
Integrations
No integrations listed
4 integrations listed
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