๐ UPDATE โ May 27, 2026
Ground-level reporting from Giga Texas confirms that construction is actively progressing on both the new Optimus Factory site and site preparations for the Advanced Technology Chip Fab โ providing the first on-the-ground visual confirmation of work tied to the broader Terafab initiative. Heavy rains over the past nine days have caused some delays to the new test track construction, but core factory and chip fab groundwork continues to push forward. Aerial observer Joe Tegtmeyer captured the latest snapshots on May 27, 2026, showing major expansion activity across the Giga Texas campus despite the weather disruptions.
๐ธ @JoeTegtmeyer ยท May 27, 2026 โ View on X
Tesla and SpaceX have confirmed a landmark joint venture that could reshape the future of autonomous driving, humanoid robotics, and AI compute infrastructure. The project, named Terafab, is a shared semiconductor manufacturing facility being built in Grimes County, Texas โ and the numbers behind it are staggering.
Whole Mars Catalog's cryptic "So it begins" post on X was the first public signal. Within hours, details emerged through SpaceX's S-1 IPO filing, confirming what many had suspected: Tesla, SpaceX, and xAI are formally pooling resources to solve one of the most critical bottlenecks in Elon Musk's empire โ chip supply.
What Is Terafab?
Terafab is a joint semiconductor fabrication complex proposed for Grimes County, Texas, near the Gibbons Creek Reservoir. It is a three-way venture between SpaceX, Tesla, and xAI โ three companies that share a chairman and a common dependency on advanced AI chips. The facility's stated purpose is to produce chips that power Tesla's FSD autonomous driving stack, Optimus humanoid robot development, AI data center infrastructure, and SpaceX's orbital compute systems.
Elon Musk put it plainly in March 2026: "Either we build the Terafab or we do not have the chips, and we need the chips, so we build the Terafab."
Intel joined as the primary manufacturing partner in April 2026, contributing its cutting-edge 18A process node technology โ one of the most advanced chip fabrication processes currently available.
The Scale of the Investment
Terafab โ Key Figures
| Initial Investment | $55 billion |
| Total Potential Investment | $119 billion |
| Location | Grimes County, Texas |
| Chip Manufacturing Partner | Intel (18A process node) |
| Joint Venture Partners | Tesla, SpaceX, xAI |
| Next Public Milestone | June 3, 2026 tax abatement hearing |
| SpaceX IPO Target | Late June 2026 (~$1.75โ2T valuation) |
Why This Matters for Tesla Owners
The chip bottleneck is not an abstract corporate problem โ it directly determines how fast Tesla can scale FSD, when Optimus becomes commercially viable, and how quickly the Robotaxi network can expand. Terafab is essentially Tesla's long-term bet that vertical integration in silicon is the only reliable path forward, the same philosophy that drove the company to build its own Dojo supercomputer and the D1 chip.
Tesla currently holds nearly 19 million shares of SpaceX Class A stock โ a stake acquired through a $2 billion investment earlier this year โ cementing the financial ties between the two companies beyond just shared leadership. The two are also reportedly co-developing Macrohard, described as an agentic AI software platform, though details remain limited from official sources.
What Comes Next
The immediate next milestone is a public hearing on June 3, 2026, in Grimes County, where local officials will consider a property tax abatement agreement for the Terafab site. That vote will be an early indicator of how smoothly the project can move through its regulatory phase.
SpaceX's IPO โ expected in late June 2026 at a valuation approaching $1.75 to $2 trillion โ will also bring substantially more public disclosure about Terafab's structure, timeline, and financial commitments. Tesla shareholders will want to watch both events closely, as the depth of Tesla's integration into this venture will become clearer once the full S-1 documentation is public.
For now, "So it begins" turns out to have been an understatement.
Sarah focuses on Tesla Energy, SpaceX missions, and the broader Musk AI portfolio. Former data analyst in clean energy. Based in San Francisco.
Sources verified at publish time. Spotted an inaccuracy? Email editorial@basenor.com.
