OpenAI and Broadcom today unveiled Jalapeño, OpenAI's first Intelligence Processor: an accelerator architected around OpenAI's vision for the future of LLM inference, and the first AI accelerator in a multi-generation compute platform the companies are building together to make advanced AI faster, more reliable, and more accessible to more people. Jalapeño was delivered to OpenAI CEO Sam Altman and President Greg Brockman by Broadcom President and CEO Hock Tan and Semiconductor Solutions President Charlie Kawwas, marking an important step in OpenAI's strategy to build the full stack behind its models and products.
OpenAI and Broadcom unveil Jalapeño, OpenAI's first LLM-optimized inference processor.
Co-developed from design to tape-out in nine months using OpenAI models to accelerate design.
Early testing shows performance per watt substantially better than current state-of-the-art.
Designed for current and future LLMs across the industry with flexibility for all models.
First step in multi-generation compute platform with deployment by end of 2026.
Built with Broadcom silicon implementation and Celestica board, rack, and system integration.
Jalapeño is a blank-slate design for modern LLM inference, not a general-purpose accelerator adapted from earlier AI workloads. It is informed by the systems OpenAI runs every day across ChatGPT, Codex, the API, and future agentic products, while also being designed for current and future LLMs across the industry. The goal is to combine the power and throughput of today's leading AI accelerators with latency closer to the fastest specialized inference systems, making Jalapeño well suited for interactive LLM products at scale. The architecture reduces data movement and balances compute, memory, and networking resources to achieve realized utilization much closer to theoretical peak performance.
Jalapeño was co-developed from initial design to manufacturing tape-out in just nine months, and the custom AI accelerator program represents what may be the fastest ASIC development cycle ever achieved in high-performance advanced semiconductors. That speed reflects deep software-hardware co-development with OpenAI's engineering teams, Broadcom's silicon implementation expertise, and the use of OpenAI models to accelerate parts of the design and optimization process. The same models served to users are helping improve the infrastructure used to run future models. If AI can help engineers design better chips faster, it can lower the cost of compute across the industry and help democratize access to advanced AI.
Greg Brockman, President and Co-Founder of OpenAI, stated: "The world is moving to a compute-powered economy. Jalapeño is part of our long-term full-stack infrastructure strategy to make compute more abundant, resulting in AI which is faster, more reliable, more affordable for people and businesses, and can be used to solve more important problems. By designing more of the stack ourselves, we can serve more intelligence with greater efficiency and keep pushing advanced AI toward broader access."
Richard Ho, who leads OpenAI's hardware program, added: "Jalapeño was designed from the ground up for LLM inference using detailed insights from our close collaboration with OpenAI researchers. We optimized the architecture around the kernels, memory movement, networking, and serving patterns that matter most for frontier AI models. Based on early testing, Jalapeño will efficiently execute our most important workloads close to the hardware's theoretical limits."
Hock Tan, President and CEO of Broadcom, commented: "Our collaboration with OpenAI represents a fundamental commitment to scaling the physical infrastructure required for the next decade of AI. This is just the beginning of a multi-generation roadmap. By co-developing our industry-leading silicon directly with OpenAI, we are enabling the deployment of gigawatt scale data centers with Microsoft and other partners beginning in 2026."
Jalapeño is the first step in a multi-generation compute platform designed for initial deployment by the end of 2026, and expanding in the years ahead, combining OpenAI-designed accelerators with Broadcom silicon implementation, networking, and connectivity technologies; and Celestica's board, rack and system expertise. Engineering samples of the Jalapeño chip are running ML workloads in the lab at production target frequency and power, including GPT-5.3-Codex-Spark.
About OpenAI
OpenAI is an AI research and deployment company. Our mission is to ensure that artificial general intelligence benefits all of humanity.
About Broadcom
Broadcom Inc. is a technology leader that designs, develops, and supplies semiconductors and infrastructure software for global organizations' complex, mission-critical needs. Broadcom combines long-term R&D investment with superb execution to deliver the best technology, at scale. Broadcom is a Delaware corporation headquartered in Palo Alto, CA.
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