What benchmark did OpenAI use to test Jalapeño?

OpenAI used InferenceX, a public benchmark from SemiAnalysis, across models like GPT-OSS 120B and DeepSeek R1 670B.

Did OpenAI say it will stop buying Nvidia chips?

No, OpenAI explicitly committed to continuing to use Nvidia accelerators for both training and inference workloads.

Large Language ModelsAI Business & IndustryYahoo Finance AIAug 26, 2026Aug 27, 2026, 04:01 JST

OpenAI's Custom Chip Beats Nvidia on Efficiency, but Vows to Keep Buying

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3 Key Points

What happened
On August 25, 2026, OpenAI unveiled Jalapeño, its first custom inference chip, claiming 1.5–1.9x more AI work per watt and 1.7–3.6x lower latency than Nvidia's GB200 and GB300 on the InferenceX benchmark.
Why it matters
Despite the headline-grabbing result, OpenAI explicitly stated it will continue to buy Nvidia accelerators for both training and inference, indicating this is a cost-saving move rather than a full supplier replacement.
What to watch
OpenAI plans to deploy Jalapeño in its own infrastructure by end of 2026, but Nvidia's Q2 results due August 26 will shed light on broader demand beyond OpenAI.

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Context & Analysis

OpenAI's announcement of Jalapeño is a notable engineering feat, but the company's simultaneous commitment to Nvidia underscores the complexity of the AI hardware landscape. While the chip shows impressive efficiency gains on public benchmarks, it is designed only for inference, not training. This suggests OpenAI is optimizing costs for its own workloads rather than seeking to replace Nvidia entirely. Nvidia's data center revenue has been strong, growing 92% year over year in Q1 FY2027, and its supply commitments remain high. The real threat to Nvidia would be if external customers start buying Jalapeño or if a training-capable version emerges, but neither is on the horizon. Investors should watch Nvidia's Q2 results for signs of broader demand.

FAQ

What benchmark did OpenAI use to test Jalapeño?: OpenAI used InferenceX, a public benchmark from SemiAnalysis, across models like GPT-OSS 120B and DeepSeek R1 670B.
Did OpenAI say it will stop buying Nvidia chips?: No, OpenAI explicitly committed to continuing to use Nvidia accelerators for both training and inference workloads.

Yahoo Finance AIRead Original Article

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