Pittsburgh-based Gray Swan, which stress-tests AI models for top frontier AI labs, raised a $40M Series A at a $200M valuation co-led by Wing VC and Madrona (Rashi Shrivastava/Forbes)

Rashi Shrivastava / Forbes: Pittsburgh-based Gray Swan, which stress-tests AI models for top frontier AI labs, raised a $40M Series A at a $200M valuation co-led by Wing VC and Madrona — Gray Swan works with every major frontier AI lab. Now it's raised $40 million as it expands to sell security tools to enterprises building AI agents.