Elon Musk Announces $25B 'Terafab' AI Chip Plant

Tesla, SpaceX, and xAI to build massive semiconductor facility in Austin, Texas.

Mar. 23, 2026 at 8:37am

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Elon Musk has unveiled plans for Terafab, a $20-25 billion joint venture between Tesla, SpaceX, and xAI, designed to produce one terawatt of computing power annually. This ambitious project signals a dramatic shift towards vertical integration in the semiconductor industry, driven by concerns over supply chain limitations.

Why it matters

Musk's decision to build Terafab is a strategic move to address the looming chip crisis and secure a reliable supply of semiconductors for Tesla's AI5 chips, SpaceX's D3 chips, and Optimus robots. By consolidating every aspect of semiconductor creation under one roof, Terafab aims to mitigate supply chain risks and maintain a competitive edge.

The details

Unlike traditional chip manufacturers, Terafab will consolidate chip design, lithography, fabrication, memory production, advanced packaging, and testing. The facility is projected to eventually achieve roughly 70% of the global output of current industry leader, Taiwan Semiconductor Manufacturing Company (TSMC). Terafab's initial output is planned at 100,000 wafer starts per month, with a long-term goal of scaling to 1 million.

  • Elon Musk announced the Terafab project on March 23, 2026.
  • Musk warned investors in late 2025 about the capacity limitations of existing chip suppliers.

The players

Elon Musk

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

Tesla

An American electric vehicle and clean energy company, a partner in the Terafab joint venture.

SpaceX

A private American aerospace manufacturer and space transportation services company, a partner in the Terafab joint venture.

xAI

An artificial intelligence research company, a partner in the Terafab joint venture.

Taiwan Semiconductor Manufacturing Company (TSMC)

The current global leader in semiconductor manufacturing, which Terafab aims to surpass in output.

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What they’re saying

“We must address the looming chip crisis head-on. Terafab is the only viable path forward to meet the escalating demands of our technologies.”

— Elon Musk

What’s next

Terafab is expected to begin construction in the coming months, with the goal of achieving its initial output target of 100,000 wafer starts per month.

The takeaway

Terafab represents a bold move by Elon Musk and his companies to take control of their semiconductor supply chain, a strategy that could have far-reaching implications for the tech industry and the global chip market.