The Stanford professor helped turn overlooked data into useful knowledge, then helped build the machinery behind modern AI. Now he is asking whether the code his lab wrote so carefully may be the next thing to change.

Percy Liang has spent years asking how artificial intelligence should be built, tested and opened to scrutiny. From Stanford's foundation-model center to Together AI and Marin, his answer keeps returning to the same practical demand: show the work.

At ETH Zürich, Ce Zhang asked why useful machine learning stayed out of reach for so many people. As Together AI’s founder and CTO, he is still working on the same problem - now at cloud scale.

From a collaborative spam filter to a cloud for open AI, the Together AI founder keeps returning to one question: who gets to build with the next powerful technology?
Vipul Ved Prakash is a serial entrepreneur and technologist who co-founded Together AI, an AI acceleration cloud platform valued at $3.3 billion after a $305M Series B in February 2025. Previously, he built Topsy (acquired by Apple for $200M+), co-founded Cloudmark (acquired by Proofpoint), and created Vipul's Razor - one of the internet's first collaborative anti-spam systems. A self-described cypherpunk with a table-tennis past, Prakash has been dismantling bottlenecks - from spam to closed AI - for over two decades.