AIAI Governance StackFree kit

CalypsoAI vs Guardion

Both compete in Runtime Enforcement & Guardrails. CalypsoAI positions itself as “Full-lifecycle inference-layer security and guardrails for enterprise AI”, while Guardionleads with “Zero-trust runtime security and governance for enterprise AI agents”. The table below compares what each publishes.

Where CalypsoAI pulls ahead

Publishes support for NIST AI RMF, EU AI Act, which Guardion does not. Security and risk leaders in large or regulated enterprises needing model-agnostic runtime controls plus governance

Where Guardion pulls ahead

Regulated enterprises deploying AI agents that need zero-trust runtime governance and data protection

PositioningFull-lifecycle inference-layer security and guardrails for enterprise AIZero-trust runtime security and governance for enterprise AI agents
CategoryRuntime Enforcement & GuardrailsRuntime Enforcement & Guardrails
FrameworksNIST AI RMF, EU AI ActNone published
DeploymentSaaS, On-prem, APISaaS, On-prem, API
Built forSecurity, Risk, GRCSecurity, Compliance, Risk
Founded20182024
HeadquartersSan Francisco, California, USADover, Delaware, USA
OwnershipAcquired by F5, Inc. (announced September 2025)Independent early-stage startup
Funding$40M+ total; $23M round led by Paladin Capital Group (2023); Lockheed Martin Ventures, Hakluyt CapitalNot published
PricingEnterprise licensing / subscriptionEnterprise licensing (not publicly detailed)
Key capabilities
  • Inference-layer input/output guardrails
  • Prompt-injection and data-loss protection
  • Model-agnostic policy enforcement
  • Centralized visibility and audit
  • Agentic Warfare continuous red teaming
  • Sub-100ms latency at scale
  • Zero-trust encrypted agent gateway
  • Runtime prompt-attack detection
  • Sensitive-data discovery and redaction
  • Data-leakage prevention
  • Policy enforcement across agent workflows
  • Low-latency drop-in proxy with high-availability SLA
IntegrationsOpenAI, Anthropic, Azure OpenAI, Google, Self-hosted and open models, Enterprise SSO/SIEMAI agents and tools via proxy, MCP / tool connections, Enterprise systems in the execution path
Notable customersNone publishedNone published
Best forSecurity and risk leaders in large or regulated enterprises needing model-agnostic runtime controls plus governanceRegulated enterprises deploying AI agents that need zero-trust runtime governance and data protection
LimitationsNow being absorbed into F5, so independent roadmap and packaging may change; enterprise-oriented pricing and deployment; less suited to small teamsVery early-stage and small; limited public track record, customer references, and disclosed funding; product maturity and independent validation still developing

Which should you shortlist?

Choose CalypsoAI if security and risk leaders in large or regulated enterprises needing model-agnostic runtime controls plus governance

Choose Guardion if regulated enterprises deploying AI agents that need zero-trust runtime governance and data protection

Neither is a substitute for a governance program. Whichever you pick, you still need people who can define the policies the tool enforces.

AI Governance Tool Selection Kit

A vendor-comparison worksheet plus EU AI Act, NIST AI RMF and ISO/IEC 42001 requirement checklists — so you can shortlist tools against the obligations that actually apply to you.

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