TLDRs;
- Hitachi shares rose over 7.25% after announcing a strategic AI and data partnership with OpenAI.
- The deal covers energy optimization, digital platforms, and industrial data infrastructure using AI technologies.
- Analysts say the partnership could boost orders in Hitachi’s energy and power systems division.
- The collaboration marks OpenAI’s deeper entry into Japan’s industrial technology and digital economy.
Hitachi Ltd. ($HTHIY) shares climbed more than 7% on Friday after the company revealed a strategic partnership with OpenAI, the U.S. artificial intelligence firm behind ChatGPT.
The announcement, made late Thursday, sparked a rally that positioned Hitachi among the top gainers on Japan’s Nikkei 225 index.
Under the memorandum of understanding signed on October 2, Hitachi and OpenAI will collaborate in fields including energy optimization, industrial automation, digital platforms, and advanced data infrastructure. The move marks Hitachi’s most significant step yet in integrating AI across its vast portfolio, from power grids to data storage and its Lumada digital solutions business.
The Nikkei 225 rose 1.85% to close at 45,769.50, with Hitachi’s surge leading the charge. Analysts credited the stock’s performance to growing investor confidence in Japan’s industrial transformation powered by artificial intelligence and automation.

Partnership to Advance AI Infrastructure
According to a company representative, the OpenAI collaboration will leverage Hitachi’s energy and cooling technologies alongside OpenAI’s large-scale AI capabilities.
The initiative aims to develop advanced computing infrastructure that supports the next generation of AI applications, particularly in areas like sustainable energy systems, predictive maintenance, and industrial intelligence.
The partnership could significantly boost orders in Hitachi’s energy and power systems division, while also strengthening its data storage business amid growing global demand for AI-ready infrastructure.
Hitachi’s Lumada platform, an enterprise system that connects industrial data to improve efficiency, will also integrate OpenAI’s models to enhance real-time analytics and automation solutions. Analysts believe this could create a new benchmark for digital industrial transformation in Asia.
AI Stocks Fuel Asia-Pacific Market Optimism
Across the Asia-Pacific region, trading was mixed, but AI-linked firms continued to dominate headlines. Japan’s gains contrasted with subdued performance in other markets, as China and South Korea remained closed for holidays.
In Australia, the S&P/ASX 200 index rose 0.46%, while Hong Kong’s Hang Seng Index slipped 0.54%. Meanwhile, in India, both the Nifty 50 and BSE Sensex hovered near flat levels during afternoon trading.
The AI momentum has been visible across Asia’s tech sector this week. Earlier, South Korea’s SK hynix saw its stock jump nearly 10% after announcing an AI data center deal with OpenAI, highlighting the growing web of partnerships between the U.S. AI giant and Asia’s technology leaders.
OpenAI’s Expanding Global Footprint
OpenAI’s partnership with Hitachi comes amid its global expansion and soaring valuation. The U.S. firm recently reached a market valuation of $500 billion following a secondary share sale to employees, underscoring investor optimism about the future of generative AI.
By aligning with Hitachi, OpenAI gains a foothold in Japan’s industrial and energy infrastructure market, a critical frontier for AI deployment beyond consumer applications. The collaboration will likely focus on integrating AI models into industrial systems to optimize energy distribution, monitor equipment health, and enhance digital twins for manufacturing.
The partnership also positions Hitachi as a key player in the next wave of AI-driven industry transformation. With OpenAI’s technology integrated across its global operations, Hitachi aims to boost efficiency, reduce emissions, and accelerate digital modernization efforts across its core business lines.