
She taught a robot hand to solve a Rubik’s Cube, helped build OpenAI’s safety systems, and turned her private learning notes into a public map of modern AI. After co-founding Thinking Machines Lab, she returned to OpenAI in 2026 to work on how research itself might accelerate.

After building machine-learning systems at DynamoAI and Reducto, Karan Brar is betting that the next valuable AI product is not another answer machine. It is a place where machines can run 4,188 experiments, remember the failures, and leave the consequential decisions to humans.