Updated October 24, 2026.
What was confirmed on August 6, 2026
SpaceX published an update that day, Breaking Ground on Terafab in Texas. The same day, the Texas governor's office announced the project in a press release. Use those two pages, not this site's older headline, for the capital figure.
- Site: Grimes County, Texas. SpaceX calls an April groundbreaking on a research fab at Giga Texas North Campus the precursor, not the full plant.
- Initial phase: about $16.8 billion in capital investment from SpaceX and Tesla. The governor's release says "more than $16.8 billion," a Texas Enterprise Fund grant of $30 million, and qualification under the Texas Jobs, Energy, Technology, and Innovation program. Later phases are described as higher. Neither statement gives a final total.
- Jobs: at least 3,000.
- Scale on the page: a vertically integrated factory planned at more than 100 million square feet, covering manufacturing, packaging, and test of advanced logic and memory.
- Why they say it is needed: combined SpaceX and Tesla chip demand "in excess of 1 terawatt (TW) of compute," which they say is larger than current global supply.
- What the chips are for, in SpaceX's words: edge and inference chips for hardware like Tesla's Optimus robots and self-driving Cybercabs, plus high-power chips for SpaceX space-based data centers.
Reuters reported on March 22, 2026 that the plan involves SpaceX, Tesla, and xAI and that Musk described factories in Austin, one aimed at cars and robots and another at AI data centers in space (Reuters). That is an announcement, not a finished fab.
This page used to lead with "$25 billion." That number is not the initial-phase figure in the August 6 statements. Treat it as an earlier label, not the sourced capital number.
Earlier versions of this page showed a chip comparison with a process node, a "40–50x AI4" compute multiple, and AI5 production dates. None of those figures are in the August 6 SpaceX update or the governor's release, so they have been removed rather than kept as specifications. Nothing here is a forecast that unsupervised driving will ship on a given date. For what driver assistance is and is not, read how Tesla Autopilot is classified and how crash ratings differ from Autopilot claims.
What Is Terafab?
A chip-fab project from SpaceX and Tesla. Reuters reported on March 22, 2026 that Musk described plans involving SpaceX, Tesla, and xAI for chip factories in Austin. On August 6, 2026, SpaceX said Terafab will combine logic, memory, and advanced packaging under one roof and will be built in Grimes County, Texas. SpaceX also said it is "deeply appreciative" of its current chip suppliers, so this is added capacity, not a stated plan to drop them.
In plain English: SpaceX and Tesla say their combined chip demand is larger than what suppliers can make today. Terafab is their plan to build that capacity themselves, starting with a roughly $16.8 billion first phase.
Timeline (sourced)
The Skeptic's Case
The first phase is not the whole bill. The City of College Station's economic development page says public filings describe a four-phase project with potential combined investment of up to about $119 billion (Grow College Station). That is a filing ceiling, not a committed budget. This page previously cited a Morgan Stanley range of $35–45 billion; we could not tie it to a Morgan Stanley publication, so it has been dropped. Advanced chip fabs are slow projects. The useful comparison is the gap between an announcement and a running factory, not a delivery date for your car.
Bottom line: No production date has been announced for the Grimes County plant, so treat any chip-delivery timeline as unconfirmed. The stated reason for the project, chip demand above current supply, is SpaceX and Tesla's own claim.
Informational only: Not financial or investment advice.