ChipsThe story, in brief
OpenAI's first custom chip "Jalapeño" reportedly beats Nvidia's Blackwell and Rubin in inference benchmarks
OpenAI's first chip beats Nvidia's latest. Here's what that means for the compute buildout.
The KeyNews take
Why it matters
OpenAI is moving from pure GPU consumer to silicon designer — and early benchmarks suggest the company can compete with Nvidia on inference, signaling a broader shift toward vertically integrated AI stacks and challenging Nvidia's hardware moat.
The key facts
5 to knowOpenAI unveiled 'Jalapeño,' a custom inference chip
Benchmark comparison: beats Nvidia Blackwell and Rubin in throughput and energy efficiency
SemiAnalysis CEO Dylan Patel: 'Usually first generation chips aren't competitive, but OpenAI is beating Nvidia Blackwell and even Rubin'
Unveiled at Hot Chips conference (Aug 25, 2026)
First in-house inference chip from OpenAI
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: OpenAI showed off "Jalapeño," its first in-house inference chip, with benchmarks at the Hot Chips conference. According to SemiAnalysis tests, the chip beats Nvidia's Blackwell and even Rubin in throughput and energy efficiency. "Usually first generation chips aren't competitive, but OpenAI is…