Luminal raises $5.3 million to build a better GPU code framework
Three years ago, Luminal co-founder Joe Fioti was working on chip design at Intel when he came to a realization. While he was working on making the best chips he could, the more important bottleneck was in software. “You can make the best hardware on earth, but if it’s hard for developers to use, they’re just not going to use it,” he told me. Now, he’s started a company that focuses entirely on that problem. On Monday, Luminal announced $5.3 million in seed funding, in a round led by Felicis Ventures with angel investment from Paul Graham, Guillermo Rauch, and Ben Porterfield. Fioti’s co-founders, Jake Stevens and Matthew Gunton, come from Apple and Amazon, respectively, and the company was part of Y Combinator’s Summer 2025 batch. Luminal’s core business is…