On Wednesday, during Alphabet Inc.’s (NASDAQ:GOOG) (NASDAQ:GOOGL) fourth-quarter earnings call, CEO Sundar Pichai said meeting surging AI demand has become the company’s biggest near-term challenge.

Responding to an analyst question about what concerns leadership most at this stage of Google’s evolution, Pichai said the company’s long-standing “AI-first” strategy is now colliding with real-world constraints.

“What keeps us up at night… We’ve been on this AI-first trajectory for over a decade,” Pichai said, pointing to years of investments in custom chips like tensor processing units, or TPUs.

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However, he added that the current moment presents a unique challenge.

“The top question is definitely around capacity,” Pichai said. “All constraints — bet it power, land, supply chain constraints — how do you ramp up to meet this extraordinary demand for this moment?”

Pichai said Google is spending significant time ensuring it can scale infrastructure responsibly while maintaining efficiency, a balancing act as data center expansion becomes more complex and expensive.

The comments reflect a broader industry struggle as tech giants race to deploy AI models that require massive computing resources.

Power availability, data center locations and equipment sourcing have increasingly become limiting factors for growth across the sector.

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Pichai said the company is focused on making the right long-term investments without sacrificing operational discipline.

“Get our investments right for the long term, and do it all in a way that we are driving efficiencies and doing it in a world-class way,” he said, noting that this is where much of his attention is currently focused.

Alphabet posted fourth-quarter revenue of $113.83 billion, topping the Street’s consensus estimate of $111.31 billion, according to Benzinga Pro data.

Revenue rose 18% from a year earlier, supported by double-digit growth across all business segments.