Elon Musk Unveils Terafab: World's Biggest Chip Factory
Description
On March 21st, 2026, Elon Musk announced a $25 billion chip factory built jointly by Tesla, SpaceX, and xAI. He called it the most epic chip building exercise in history. That might actually be accurate.
Terafab's target is one terawatt of computing power per year, more than every chip manufacturer in the world combined can produce today or is projected to produce by 2030.
The entire global semiconductor industry outputs around 20 gigawatts annually. Terafab is targeting fifty times that from a single facility. It will produce AI chips for Tesla's self-driving cars, Optimus robots, and Cybercab robotaxis, plus radiation-hardened chips built specifically for space. Because 80% of its compute output is headed to orbit, running on constant sunlight, cooled by the vacuum of space.
SpaceX has already filed an FCC application to launch one million data center satellites. This is what vertical integration actually looks like when you own the rockets, too.
Transcript
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Kind: captions Language: en On March 21st, 2026, Elon Musk walked into a gutted power plant in Austin, Texas, with light beams shooting into the night sky above him, and announced something that has no real precedent in the history of technology. A chip factory, but not like any chip factory that has ever existed. Terrafab is a $25 billion joint venture between Tesla, SpaceX, and XAI designed to consolidate every stage of semiconductor production under one roof, including chip design, lithography, fabrication, memory production, advanced packaging, and testing. Musk called it the most epic chip building exercise in history by far. That's a big claim. Here's why it might actually be true. The goal is 1 terowatt of computing power per year. Tesla says that's more than every chip manufacturer in the world combined can produce today or even by 2030 based on projected growth. The entire global semiconductor industry currently outputs around 20 gawatt annually. Terrafab is targeting 50 times that from one building. The factory will produce two chip families. The first AI5 and AI6 processors powers Tesla's full self-driving system, Cyber Cab robo taxis and Optimus humanoid robots. The second, the D3 chip, is radiation hardened, specifically for operation in space. That second chip is where this gets strange. Musk said 80% of Terapab's compute output will go towards space-based orbital AI satellites, arguing that solar arradiance in space is roughly 5 times greater than at Earth's surface, and that heat rejection in vacuum makes thermal scaling viable. SpaceX has already filed an FCC application to launch 1 million data center satellites into orbit. The logic, if it works, is genuinely elegant. Tesla designs the chips. SpaceX launches them on Starship. XAI runs AI workloads from orbit powered by constant sunlight for less cost than any data center on the ground. The targets are staggering. At full capacity, Terrafab would represent roughly 70% of TSMC's entire current global output.