White Circle, which runs a real-time control layer between enterprise users and AI models to enforce company-specific policies at inference—blocking jailbreaks, hallucinations, and unauthorized actions before they complete—raised $11 million in seed funding announced May 12, 2026. Investors include Romain Huet (OpenAI head of developer experience), Durk Kingma (OpenAI/Anthropic), Guillaume Lample (Mistral co-founder and chief scientist), and Thomas Wolf (Hugging Face co-founder). The company has processed over one billion API requests and published KillBench, a study of how 15 models behave when forced into life-or-death decisions.