Open-source and enterprise platform for testing and red-teaming LLM agents
EU AI ActNIST AI RMFOpen-source
Cranium AI
End-to-end AI security and governance platform to discover, monitor, red-team and prove enterprise AI
What Cranium AI does
Cranium AI is an enterprise platform for securing and governing artificial intelligence across its full lifecycle, spanning internally built models, AI agents, and third-party vendor systems. Spun out of KPMG Studio in 2023, Cranium frames its offering as an "AI Trust Loop" built around five functions: discovering and inventorying AI assets (including shadow AI) through an AI Bill of Materials; observing model and agent behavior with continuous monitoring of hundreds of risk signals; governing usage against policies mapped to regulatory frameworks; securing systems through adversarial testing and runtime defense; and proving compliance via audit-ready AI Cards and Trust Hubs. Its standout capability is Cranium Arena, positioned as a dedicated AI red-teaming environment that simulates automated and human-led attacks using MITRE ATLAS and OWASP threat libraries and extends across the AI supply chain. Because its center of gravity is adversarial security and threat testing rather than pure policy workflow, Cranium is best understood as a red-teaming and AI-security platform that layers governance and compliance reporting on top. It targets security, risk, and governance leaders in regulated enterprises and was named a 2025 Gartner Cool Vendor for AI cybersecurity and governance.
Key capabilities
- AI asset discovery and AI Bill of Materials (AI-BOM)
- Shadow AI detection
- Continuous behavioral monitoring and observability
- Cranium Arena red-teaming (MITRE ATLAS, OWASP)
- Policy governance mapped to NIST AI RMF, EU AI Act and ISO 42001
- Runtime threat detection and remediation
- AI Cards and Trust Hub for audit-ready attestation
- Third-party / vendor AI risk assessment
Best for
Enterprises that need to secure, red-team, and prove governance across internal and third-party AI in one platform
Limitations
Security- and red-teaming-first orientation means it emphasizes threat testing and monitoring over deep policy/GRC workflow; enterprise pricing is not publicly listed; still a relatively young company with limited publicly named customers.
Framework coverage
| Framework | Type | Supported |
|---|---|---|
| EU AI Act | Regulation | Yes |
| NIST AI RMF | Voluntary framework | Yes |
| ISO/IEC 42001 | Certifiable standard | Yes |
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