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tech 26 August 2026

OpenAI Jalapeño: Outperforming Nvidia Blackwell

OpenAI unveils Jalapeño, a cutting-edge ASIC redefining AI inference standards, outperforming leaders like Nvidia Blackwell.

Article inspired by the original source
OpenAI Jalapeño: Better than Nvidia Blackwell ↗ newsletter.semianalysis.com

Introduction

The semiconductor industry was recently shaken by OpenAI's announcement of its latest ASIC, Jalapeño. This newcomer in the world of AI inference chips is already making waves, outperforming established giants like Nvidia and AMD. In partnership with Broadcom, OpenAI designed this chip from scratch, making it not only competitive but a leader on many fronts.

A Versatile Chip

Contrary to what one might believe, Jalapeño is not specifically optimized solely for OpenAI models. It is a generalized inference chip capable of handling a variety of models and workloads. In tests conducted in OpenAI's labs, Jalapeño demonstrated impressive performance on benchmarks like InferenceX. In terms of token throughput per megawatt (MW), Jalapeño even outperforms the best configurations of competing chips, including the renowned Nvidia Blackwell.

Accelerated Design and Development

Jalapeño's development was remarkably swift. In just 16 months, OpenAI went from planning to production. This showcases the efficiency of using AI to accelerate chip design. This rapid development cycle, combined with pragmatic design decisions, has enabled OpenAI to launch a chip that defies industry standards.

Technical Features

One of Jalapeño's most notable features is its use of HBM4 memory, making it comparable to flagship GPUs from Nvidia and AMD. This technology allows for high-speed data processing, crucial for AI inference. Furthermore, Jalapeño does not overly specialize in any specific part of model inference but instead offers high performance across all scenarios.

Performance Results

The results are clear: Jalapeño outperforms Blackwell in terms of performance per watt in almost all tested scenarios. This includes varied workloads, demonstrating the chip's flexibility and efficiency. A fun fact: OpenAI even managed to run the game Doom on Jalapeño, simply using Codex prompts, proving its versatility.

Conclusion

With Jalapeño, OpenAI is not just keeping up with industry leaders, it is outpacing them. This innovative chip reaffirms OpenAI's commitment to rapid evolution and innovation in the AI field. If you're looking to integrate high-performance AI solutions into your project, don't miss the opportunity to discuss the possibilities that Jalapeño could offer.

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OpenAI Jalapeño ASIC AI inference Nvidia Blackwell
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