Anthropic co-founder Daniela Amodei once reflected on a moment of clarity that helped her walk away from OpenAI and eventually build a new artificial intelligence company without looking back.

A Difficult Decision To Leave OpenAI

In a May conversation at Stanford Graduate School of Business, Amodei said the decision to leave OpenAI in late 2020, alongside her brother Dario Amodei and other senior researchers, did not initially feel obvious or easy.

At the time, she described the move as uncertain and even "kind of a crazy thing to do," noting that the team debated whether they could still make things work inside the organization.

The Advice That Changed Her Perspective