Musk Launches Terafab: Tesla, SpaceX, and xAI’s $25 Billion Chip Venture
Elon Musk has unveiled Terafab, a new chip manufacturing initiative in Texas that consolidates resources from Tesla, SpaceX, and xAI. The project aims to create a shared semiconductor pipeline to support the growing demands of artificial intelligence, robotics, and space-based computing.
Terafab’s Core Objectives
The ambitious plan, described as “the most epic chip building exercise in history by far,”1 centers around bringing more chip production in-house. Musk’s companies are facing increasing demand for computing power – Tesla for self-driving systems and its Optimus robot, xAI for AI infrastructure, and SpaceX for space-based compute, and communications. Currently, these companies rely on external suppliers like TSMC, Samsung, and Micron, but Musk anticipates a ceiling on their expansion capacity within the next few years.1
Initial Phase in Austin, Texas
The project will commence with an “advanced technology fab” in Austin, Texas, jointly run by Tesla and SpaceX, with xAI also involved.2 This initial facility will focus on advanced chip design and testing, rather than full-scale production.2 The location is near Tesla’s existing Austin headquarters and Gigafactory.2
Long-Term Vision: A Terawatt of Computing Power
Musk envisions Terafab eventually supporting one terawatt of computing power annually.1 This would be split between Tesla’s AI5 inference chips for vehicles and Optimus robots, and D3 chips designed for SpaceX’s orbital satellite constellation.1 The project aims to produce chips capable of supporting 100 to 200 gigawatts a year of computing power on Earth, and a terawatt in space.2 Musk has previously stated the facility would produce 2 nanometer chips.2
Addressing the Semiconductor Supply Chain
The Terafab project is a direct response to concerns about the limited capacity of the existing semiconductor industry to meet Musk’s projected needs.2 Musk stated, “We either build the TeraFab, or we don’t have the chips, and we need the chips, so we build the TeraFab.”2 The project’s scale is significant, with the potential to reach roughly 70% of the global output of the world’s largest semiconductor foundry, Taiwan Semiconductor Manufacturing Company (TSMC).1
Investment and Timeline
Terafab represents a $20-25 billion investment.1 Whereas specific timelines for the facility’s completion and output have not been announced, Musk indicated the Austin site is just the first step in a larger manufacturing plan.2
1 Teslarati. “Elon Musk Launches TERAFAB: The $25B Tesla-SpaceXAI Chip Factory.” March 21, 2026. https://www.teslarati.com/elon-musk-lanuches-terafab-tesla-spacexai-chip-factory/
2 Fortune. “Musk says Tesla, SpaceX, xAI chip project to kick off in Texas.” March 22, 2026. https://fortune.com/2026/03/22/musk-terafab-chip-project-tesla-spacex-xai-space-data-center-satellite/
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