To Power AI, This Startup Built a Really, Really Big Chip

Computer chips are usually small. The processor that powers the latest iPhones and iPads is smaller than a fingernail; even the beefy devices used in cloud servers aren't much bigger than a postage stamp. Then there's this new chip from a startup called Cerebras: It's bigger than an iPad all by itself. The silicon monster is almost 22 centimeters--roughly 9 inches--on each side, making it likely the largest computer chip ever, and a monument to the tech industry's hopes for artificial intelligence. Cerebras plans to offer it to tech companies trying to build smarter AI more quickly.