How OpenAI Used Its Own LLMs to Design Its Jalapeño Chip hackernews September 18, 2026 SemiconductorsAIComputingNews How OpenAI Used Its Own LLMs to Design Its Jalapeño Chip AI drastically shortened its design time; it will only get fasterMatthew S. Smith14 Sep 20266 min readMatthew S. Smith is a contributing editor for IEEE Spectrum and the former lead reviews editor at Digital Trends.OpenAI’s Jalapeño pairs its compute die with six stacks of HBM4 and an I/O chiplet. OpenAI Source: hackernews
SemiconductorsAIComputingNews How OpenAI Used Its Own LLMs to Design Its Jalapeño Chip AI drastically shortened its design time; it will only get fasterMatthew S. Smith14 Sep 20266 min readMatthew S. Smith is a contributing editor for IEEE Spectrum and the former lead reviews editor at Digital Trends.OpenAI’s Jalapeño pairs its compute die with six stacks of HBM4 and an I/O chiplet. OpenAI