A detailed look at Jalapeño, OpenAI's ASIC developed with Broadcom in 16 months, which beat Nvidia, AMD, and Google chips on multiple top open-source models (SemiAnalysis)

OpenAI’s Jalapeño ASIC, co-designed with Broadcom in just 16 months, outperformed competing Nvidia, AMD and Google chips on several open-source models such as GPT-OSS, DeepSeek R1 and Kimi K2.5 1T, delivering 1.5-1.9× higher AI work per watt and 1.7-3.6× lower inference latency.