Son predicts $5T annual AI investment by 2040
Analysis based on 22 articles · First reported Jul 14, 2026 · Last updated Jul 15, 2026
Son's forecast underscores the massive scale of expected AI infrastructure spending, which could drive sustained demand for semiconductors, data centers, and energy. The bullish outlook may boost sentiment for AI-related stocks like Nvidia and OpenAI, but also raises questions about returns on such unprecedented investment.
SoftBank Group CEO Masayoshi Son, speaking at the company's annual corporate conference in Tokyo on July 14, 2026, forecast that global investment in AI infrastructure will reach $5 trillion annually by 2040, dismissing concerns about an AI bubble as 'absurd'. Son predicted AI could account for 20% of global GDP by 2040, making the investment a 'rounding error'. He also estimated AI data centers will require 3 terawatts of power generation by 2040, initially powered by gas before nuclear fusion becomes the main source. SoftBank's cumulative investment in OpenAI is set to exceed $60 billion by end of 2026. The company recently started a battery business in Japan to meet AI-driven electricity demand. Son outlined a vision of 100 trillion autonomous AI agents by 2040, marking a shift from a human-centric to an agent-centric world.
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