Anthropic president Daniela Amodei recommended booking a trip with your startup cofounder. Andrej Sokolow/picture alliance via Getty Images

Anthropic president Daniela Amodei shared her tips for picking a good cofounder.

Amodei recommended traveling with them first and sharing a hotel room.

"If you're like, 'Really going to need a vacation to recover from my vacation,' it might be the wrong choice," she said.

If your cofounder relationship wouldn't survive sharing a hotel room, that's a problem, according to one Anthropic cofounder.

Daniela Amodei left OpenAI with her brother, Dario, to launch Anthropic. The duo — along with their five other cofounders — built one of the most valuable AI businesses, one that investors are racing to get into .

In a talk at the Stanford Graduate School of Business , Amodei offered advice on picking a cofounder.…