OpenAI and Broadcom unveil Jalapeno, a custom inference chip built in nine months with AI-assisted design
OpenAI revealed its first custom silicon on June 24, 2026: Jalapeno, an LLM inference accelerator co-developed with Broadcom that targets gigawatt-scale deployment by end of 2026 and is already running GPT-5.3-Codex-Spark in lab testing.