OpenAI's 'Jalapeño' Chip Reportedly Beats Nvidia Blackwell

dylan522p · x · 2026-08-29

SemiAnalysis founder Dylan claims that OpenAI's first in-house chip, codenamed 'Jalapeño,' delivers performance that surpasses Nvidia's Blackwell and even Rubin. This follows a notable shift in dynamic, as Sam Altman previously dismissed Dylan but recently invited the SemiAnalysis team to OpenAI's labs to dissect the new chip's architecture and performance.

Related event: Report: OpenAI's in-house Jalapeño chip may outperform Nvidia Blackwell(2 posts)→

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