TSMC is manufacturing OpenAI's AI chip using its advanced 3-nanometer process technology. The chip features a commonly used systolic array architecture with high-bandwidth memory (HBM) - also used by Nvidia for its chips - and extensive networking capabilities, sources said.

OpenAI is finalizing its first in-house AI chip design, aiming to reduce reliance on Nvidia. The chip, set for TSMC fabrication, will undergo a six-month 'tape out' process. If successful, mass production could start by 2026,