Elon Musk Predicts Orbital Compute Will Pass Earth Compute Around the End of 2028
@SPCX100T Terrestrial compute will be peanuts compared to orbital compute. Orbital compute deployed per month probably exceeds terrestrial around the end of 2028 and then far exceeds it in 2029.
Context
Musk is putting a specific date on his bet that AI compute moves to space, which shapes expectations for SpaceX and xAI.
Elon Musk has argued for months that the cheapest way to scale AI compute is in orbit, powered by solar energy, and he has also pitched building compute on the Moon. Google said this week that a TPU in orbit ran its first prompt. Musk posted this prediction as a reply on Friday night.
Deep dive
Replying to another user on Friday night, Elon Musk wrote that "terrestrial compute will be peanuts compared to orbital compute." He added that orbital compute deployed per month probably exceeds terrestrial compute around the end of 2028 and then far exceeds it in 2029.
The reply drew more than 430,000 views and about 8,000 likes, according to the X API. It gives no figures for how much compute he expects to launch, what it would cost, or which company would build it.
The claim fits a theme Musk has pushed often. He has argued that solar power in space and cheap launches on Starship make orbit the natural place for AI data centers, and he has pitched factories on the Moon to scale compute further. Google's Project Suncatcher put an AI chip in orbit this week, a small but real step toward space based compute.
The forecast is Musk's own prediction, not a plan from SpaceX or xAI, and his past timelines for products such as self driving cars have often slipped. Readers should treat the 2028 date as a target he is setting rather than a commitment.
What to expect next
Watch for concrete plans from SpaceX or xAI, such as launch schedules, satellite designs or power figures for orbital data centers. Progress on Starship launch cadence and cost will decide whether the numbers can work. Also watch Google's Suncatcher results and any other company testing chips in orbit, since early tests will show how heat, radiation and data links limit the idea.