OpenAI and SoftBank Launch 'Stargate' Initiative: $500 Billion for AI Supercomputing

OpenAI and SoftBank have announced the largest AI infrastructure investment in history — "Stargate."

Scale

• Total investment: $500 billion (over 4 years)
• Initial investment: $100 billion
• Plans to build 10 hyperscale data centers
• Each data center equipped with 100,000–200,000 GPUs
• Once fully built, total computing power will be more than 5 times the current global AI computing capacity

Participants

• OpenAI (providing technology and demand)
• SoftBank (primary investor)
• Oracle (data center operations)
• MGX (UAE sovereign wealth fund)

Why So Much Computing Power Is Needed

According to Sam Altman, achieving AGI requires exponentially growing computing power. GPT-5's training compute is already 10 times that of GPT-4, and future models will only be more compute-hungry.

Energy Challenges

A $500 billion AI data center buildout means astronomical electricity consumption. It's estimated to require around 50GW of power — equivalent to the output of 5 large nuclear power plants.

OpenAI has already begun investing in new energy sources like nuclear fusion and geothermal. The future of AI is not just a competition of algorithms, but also a competition of energy.

References:

• OpenAI Blog