This AI Startup’s Army Of 15,000 Hackers Pressure Test Claude, GPT-5 And Gemini

InnovationEditors' PickThis AI Startup’s Army Of 15,000 Hackers Pressure Test Claude, GPT-5 And GeminiGray 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. ByRashi Shrivastava,Writer. Rashi Shrivastava is a staff writer covering AI and startups. Follow AuthorMay 28, 2026, 12:00pm EDT@font-face{font-family: "Schnyder"; src: url("https://i.forbesimg.com/assets/fonts/schnyders/schnyders-bold-webfont.woff2") format("woff2"), url("https://i.forbesimg.com/assets/fonts/schnyders/schnyders/schnyders-bold-webfont.woff") format("woff"); font-weight: 700; font-style: normal;} @font-face{font-family: "Merriweather"; src: url("https://i.forbesimg.com/assets/fonts/merriweather/merriweather-bold-webfont.woff2") format("woff2"), url("https://i.forbesimg.com/assets/fonts/merriweather/merriweather-bold-webfont.woff") format("woff"); font-weight: 700; font-style: normal;} @font-face{font-family: "Graphik"; src: url("https://i.forbesimg.com/assets/fonts/graphik/graphik-bold.woff2") format("woff2"), url("https://i.forbesimg.com/assets/fonts/graphik/graphik-bold.woff") format("woff"); font-weight: 700; font-style: normal;} @font-face{font-family: "Schnyder"; src: url("https://i.forbesimg.com/assets/fonts/schnyders/schnyders-light-webfont.woff2") format("woff2"), url("https://i.forbesimg.com/assets/fonts/schnyders/schnyders-light-webfont.woff") format("woff"); font-weight: 400; font-style: normal;} @font-face{font-family: "Merriweather"; src: url("https://i.forbesimg.com/assets/fonts/merriweather/merriweather-regular-webfont.woff2") format("woff2"), url("https://i.forbesimg.com/assets/fonts/merriweather/merriweather-regular-webfont.woff") format("woff"); font-weight: 400; font-style: normal;} @font-face{font-family: "Graphik"; src: url("https://i.forbesimg.com/assets/fonts/graphik/graphik-regular.woff2") format("woff2"), url("https://i.forbesimg.com/assets/fonts/graphik/graphik-regular.wof...