OpenAI unveiled Jalapeño, its first custom AI chip developed with semiconductor giant Broadcom, marking a decisive break from its dependence on Nvidia hardware. The chip was announced eight months after the partnership went public. OpenAI signals it is ready to architect solutions tailored for its massive-scale language models rather than relying on general-purpose accelerators. The potential savings run into hundreds of millions annually when serving hundreds of millions of ChatGPT users. Broadcom has designed custom chips for Google's TPUs and helps Meta build its training accelerators. Jalapeño likely targets inference workloads. The broader trend reveals AI leaders betting their futures on hardware differentiation.