Elon Musk Just Announced Terafab. What Is Is, and How Will It Change His Business Empire?

Musk plans the world’s largest semiconductor plant to outpace TSMC and fuel his AI empire.

BY MOSES JEANFRANCOIS, NEWS WRITER @MOSESJEANS

Elon Musk. Photos: Getty Images

CEO Elon Musk is looking to consolidate his three flagship companies, Tesla, SpaceX, and xAI, into a new venture. Planned for the north campus of Tesla’s Giga Factory in Texas, his new project, called Terafab, will be a new semiconductor mega-factory that joins multiple AI chips under one roof. 

The multi-year build was announced by Musk on March 21 as art of a push to fabricate AI chips faster, calling it “the most epic chip building exercise in history by far.”  

Terafab Emerged From Business Need

Musk noted that his current chipmakers, Taiwanese Semiconductor Manufacturing Company (TSMC) and Samsung, weren’t making chips fast enough for his companies’ AI and robotics needs, a gap he’s looking to close with the new project. 

“We either build the Terafab or we don’t have the chips, and we need the chips, so we build the Terafab,” he said. “There’s a maximum rate at which they’re comfortable expanding. That rate is much less than we would like.” 

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Terafab is designed to produce two chip families: an edge‑inference processor built to power Tesla’s Full Self‑Driving platform, the Optimus humanoid robot, and the company’s planned Robotaxi fleet; and a high‑power support for SpaceX’s satellite network, emerging orbital data‑center concepts, and xAI’s off‑planet ambitions. 

Musk Lays Out Ambitious Vision

The $25 billion chip fabrication facility is set to produce 1 terawatt of computing power annually. Musk plans for Terafab to be significantly larger than Giga Texas, looking to beat TSMC as the largest semiconductor fabrication plant ever built.   

Despite the intensity and size of the project, Musk said at the project’s announcement that roughly 80% of Terafab’s compute output would be directed toward space-based orbital AI satellites, with only 20% for ground-based applications. 

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