AI Quality Testing, Monitoring and Governance

Citadel AI, founded in December 2020 and headquartered in Tokyo’s Shibuya-ku district, provides an end-to-end platform for evaluating, monitoring, and governing AI systems across LLMs, vision models, and predictive applications. Its flagship product, Lens, automates safety, reliability, and compliance testing while generating governance-ready reports aligned with global standards.

With offerings such as its custom generative AI firewall and partnerships with organizations like BSI and the AI Verify Foundation, Citadel AI represents the growing class of enterprise-grade AI assurance platforms designed to keep advanced models secure and trustworthy.

Citadel AI raised approximately $3.7 million in a Series A.