What is SoftBank's role in building AI infrastructure?

SoftBank is one of the main backers of the Stargate project led by OpenAI, which aims to invest a total of $500 billion（約80兆円） into AI infrastructure across the U.S. over four years. Son made an initial commitment of $19 billion（約3兆円） for the project.

Why does Son think orbital data centers don't make economic sense?

Son explained that while orbital systems might reduce electricity costs through clean solar power, those savings would be canceled out by the additional costs of transporting materials into space and maintaining the facilities. Communication delays between Earth and space would also pose a problem. Electricity represents only a fraction of total data center operating costs compared to hardware and chips.

How much electricity do global data centers currently use?

Global data centers consumed 448 terawatt-hours last year, and U.N. researchers estimate that number will double by 2030, mainly due to growing demand for AI.

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SoftBank CEO Son prioritizes Earth-based AI data centers over Elon Musk's orbital ambitions, arguing speed of deployment now matters more than technological moonshots years ahead.

Fortune AI13h ago5 min read

Key takeaway

SoftBank's CEO rejected Elon Musk's proposal to build AI data centers in orbit, arguing instead that rapid Earth-based deployment is critical to winning the near-term AI competition. Son stated that electricity savings from space-based systems would be offset by launch and maintenance costs, while the real competitive battle will be decided in the next few years, not a decade ahead. SoftBank is focusing its resources on the Stargate project, which plans to invest $500 billion（約80兆円） in terrestrial AI infrastructure over four years.

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3 Key Points

What happened
At SoftBank's shareholder meeting, CEO Masayoshi Son dismissed Musk's orbital data center concept as impractical, saying the company is instead focusing on building data centers on Earth. Son stated that electricity costs—which space-based systems aim to reduce—represent only a fraction of total data center operating costs compared to hardware and chips.
Why it matters
The disagreement reflects a strategic divide over how to meet surging AI infrastructure demand. Global data centers consumed 448 terawatt-hours last year, with U.N. researchers estimating that figure will double by 2030 to support AI growth. Son argues that winning the near-term AI race requires immediate deployment on Earth rather than waiting years for orbital infrastructure to mature.
What to watch
SoftBank is a major backer of the Stargate project, which aims to invest a total of $500 billion（約80兆円） into AI infrastructure across the U.S. over four years. Son also announced a longer-term target to raise SoftBank's net asset value to 1 quadrillion yen ($6.4 trillion（約1000兆円）) over the next 16 years through artificial superintelligence pursuits.

FAQ

What is SoftBank's role in building AI infrastructure?: SoftBank is one of the main backers of the Stargate project led by OpenAI, which aims to invest a total of $500 billion（約80兆円） into AI infrastructure across the U.S. over four years. Son made an initial commitment of $19 billion（約3兆円） for the project.
Why does Son think orbital data centers don't make economic sense?: Son explained that while orbital systems might reduce electricity costs through clean solar power, those savings would be canceled out by the additional costs of transporting materials into space and maintaining the facilities. Communication delays between Earth and space would also pose a problem. Electricity represents only a fraction of total data center operating costs compared to hardware and chips.
How much electricity do global data centers currently use?: Global data centers consumed 448 terawatt-hours last year, and U.N. researchers estimate that number will double by 2030, mainly due to growing demand for AI.

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