30 August 2026

OpenAI designed custom chip with help from its own AI

First reported

Exponential View ran this on .

  • OpenAI built a chip called Jalapeño in 16 months using its own AI models to write parts of the underlying code, particularly for kernel optimization.
  • The Jalapeño performs 1.5 to 1.9 times better than comparable Nvidia chips when measured by tokens per megawatt, a standard for AI efficiency.

How it was covered