
OpenAI's First AI Inference Chip Beats Nvidia's GB300 in Fixed-Length Tests, but Rubin Comparison Is Still Missing
OpenAI's first custom inference ASIC, Jalapeño, outperformed Nvidia's GB300 in fixed-length benchmark tests. This article examines its power-efficiency gains and the unresolved questions around Rubin comparisons, long-context validation, and mass production.








