Altman’s OpenAI just built its first chip, Jalapeño, and why Nvidia should be worried

OpenAI has unveiled Jalapeño, its first in-house AI chip, designed with Broadcom to run the models behind ChatGPT and Codex. Built for inference rather than training, the chip is pitched on efficiency, with OpenAI claiming far better performance per watt than off-the-shelf options. The move cuts its reliance on Nvidia and puts OpenAI alongside Google, Amazon, Microsoft and Meta in building custom silicon. First deployments are expected by year’s end, scaling through 2027.