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Musk Unveils Terafab, an Austin Chip Fab Aiming to Power Terawatt-Scale AI in Space

The joint TeslaSpaceXxAI effort pitches an all-in-one semiconductor plant to bypass supply limits by moving most compute to solar-powered satellites.

Overview

  • Musk said Terafab will start in Austin as an integrated facility that brings mask making, fabrication, packaging, testing, and rapid redesign under one roof.
  • The program targets one terawatt of compute per year, far above today’s output, with most capacity envisioned on orbit rather than in terrestrial data centers.
  • Two chip lines are planned: an edge-inference design for Tesla vehicles and Optimus robots, and a radiation-tolerant D3 family for space environments.
  • Musk outlined a mini AI satellite concept delivering about 100 kilowatts per unit and tied feasibility to Starship’s payload gains and a hoped-for drop in launch costs toward $100–$200 per kilogram.
  • The project remains early with no timeline disclosed, Texas backing was referenced at the launch event, and Bloomberg reported SpaceX is eyeing an IPO and has sought FCC approval for a large data-center satellite constellation.