Dario Amodei, chief executive officer and co-founder of Anthropic, leads the artificial intelligence laboratory behind the Claude model family. He left OpenAI over ideological differences regarding safety and commercial acceleration, then built an enterprise that partnered with Amazon and Google and raised venture capital for hardware clusters. A physicist with a doctorate from Princeton University, Amodei worked at Baidu and Google Brain before joining OpenAI in 2016 as vice president of research. By late 2020, ideological fault lines within OpenAI widened as compute costs soared into the hundreds of millions of dollars and Microsoft entered with billions in capital. Amodei, alongside his sister Daniela Amodei and safety researchers, chose exit over compromise, arguing that building systems vastly smarter than humans without ironclad alignment safeguards was an existential gamble.