OpenAI announced that its new custom AI chip, called Jalapeno, outperformed Nvidia’s current-generation GB300 processor in internal testing, marking a notable milestone in the ChatGPT maker’s push to build its own AI infrastructure rather than relying entirely on outside chip suppliers. In benchmark testing, Jalapeno led in two specific categories, the amount of AI work it could process per unit of power consumed, and the speed at which it returned responses, according to OpenAI’s chip chief, who discussed the results in an interview and presented them publicly at the Hot Chips conference at Stanford University.