Elon Musk Announces Plans for $20B "Largest Chip Manufacturing Facility Ever"

The new Terafab facility aims to produce AI chips for Tesla's self-driving tech and SpaceX's space-based data centers.

Mar. 23, 2026 at 9:26am

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Elon Musk has unveiled plans for Terafab, a joint venture between his companies Tesla, SpaceX, and xAI, to build the world's largest chip manufacturing facility in Austin, Texas. The $20 billion project aims to produce AI chips at a scale of 1 terawatt of compute, dwarfing the output of current industry leaders like TSMC and Samsung. The chips will power Tesla's self-driving vehicles and humanoid robots, as well as SpaceX's space-based data centers.

Why it matters

Musk believes that scaling computing power is key to solving complex physics challenges, accelerating humanity's future, and becoming a multi-planet species. However, building a state-of-the-art chip fabrication facility of this scale is an enormously complex and difficult undertaking, even for experienced companies. Tesla's own self-driving tech has faced delays, raising questions about Musk's ambitious timeline for Terafab.

The details

Terafab will handle all aspects of chip design, fabrication, and testing under one roof, using 2-nanometer process technology. The first chips will power Tesla's self-driving vehicles and Optimus humanoid robots, while the second type will be used in SpaceX's space-based data centers. Musk estimates Terafab will need to produce billions of chips annually to meet the demand for Tesla's robots and SpaceX's satellite computing.

  • Terafab will begin small-scale production in 2023.
  • Musk expects Terafab to ramp up to full volume production by 2027.

The players

Elon Musk

The CEO of Tesla, SpaceX, and xAI, who is spearheading the Terafab project.

Tesla

Musk's electric vehicle company, which will use Terafab chips to power its self-driving technology and Optimus humanoid robots.

SpaceX

Musk's aerospace company, which will use Terafab chips in its space-based data centers.

xAI

Musk's artificial intelligence research company, which is a partner in the Terafab joint venture.

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What they’re saying

“Scaling computing power is the path to solving complex physics challenges, accelerating humanity's future, and becoming a multi-planet species.”

— Elon Musk

What’s next

Terafab is expected to begin small-scale chip production in 2023, with plans to ramp up to full volume manufacturing by 2027.

The takeaway

Musk's ambitious plans for Terafab highlight his vision for using advanced computing power to drive technological breakthroughs, but the project's scale and timeline raise significant doubts about its feasibility, especially given Tesla's own struggles with self-driving technology.