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Musk says SpaceX and Tesla to build advanced chip factories in Austin

By Thomson Reuters Mar 22, 2026 | 4:45 PM

By Joe Brock

LOS ANGELES, March 22 (Reuters) – SpaceX and Tesla will build two advanced chip factories at a sprawling facility in Austin, Texas, one to power cars and ​humanoid robots, and another designed for artificial intelligence ‌data centers in space, CEO Elon Musk said on Sunday.

The comments followed Musk’s announcement a day earlier of plans to build “Terafab,” an advanced AI chip complex in Austin.

“Terafab will technically be two fabs, each making only one ‌chip ​design,” Musk wrote in a post on ⁠X.

Musk has previously said ⁠Tesla would need to build its own AI chip plant, but the involvement of SpaceX had not been disclosed. SpaceX, which is preparing for a public listing that could value the ​company at around $1.75 trillion, recently merged with Musk’s social media and artificial intelligence firm xAI.

“We either build the Terafab ⁠or we don’t have the chips,” Musk ⁠said during a presentation in an Austin facility ​on Saturday, adding current global chip production would meet only a ​small fraction of his companies’ future needs.

Musk did not ‌give a timeline for the new project. Musk has a track record of announcing highly ambitious projects, though several have faced delays or fallen away.

Musk said he was grateful to existing chip ⁠suppliers, naming Samsung, TSMC and Micron, but said demand from his companies would eventually exceed total global chip output.

Terafab will eventually produce one ⁠terawatt of computing ‌capacity a year, compared with about half a ⁠terawatt currently generated across the United States, Musk ​said.

He ‌said one chip would be used in Tesla ​vehicles and ⁠Optimus humanoid robots, while the second would be designed for AI satellites in space.

“We need a high‑powered chip designed for space that takes into account the harsher environment,” Musk said, adding it would need to operate at higher temperatures.

(Reporting by Joe Brock; Editing ​by Chris Reese)