The narrative that AI investment saved the U.S. economy from collapse just got upended. A new analysis from MRB Partners reveals that consumer spending - not artificial intelligence capital expenditures - was the primary driver of U.S. GDP growth in 2025, with AI's actual contribution closer to 20-25% once you account for imported hardware. The finding challenges months of Wall Street orthodoxy that positioned AI as the economy's sole lifeline and suggests the domestic expansion is more balanced than headlines suggest.
The AI hype cycle just collided with economic reality. While tech giants have poured hundreds of billions into data centers and chips, a January report from MRB Partners shows that consumer spending - not artificial intelligence - was the true engine of U.S. economic growth in 2025.
The findings challenge a narrative that dominated financial media and analyst calls throughout the year: that AI investment was the only thing preventing economic stagnation. "AI is an important part of the growth story, but it's not the only part of the growth story," MRB Partners U.S. economic strategist Prajakta Bhide told CNBC in an interview. "Still, it's the U.S. consumer that continues to drive the expansion."
The math tells a different story than the headlines. Without adjusting for imports, AI-related components appeared to add around 90 basis points to real GDP growth between Q1 and Q3 2025 - roughly 40% of average growth during that period. But here's the catch: GDP measures domestic production, and a massive share of AI hardware comes from overseas.
When Bhide adjusted for real imports of computers, peripherals, semiconductors and telecom equipment, AI's net contribution dropped to just 40-50 basis points, or about 20-25% of real GDP growth. The difference matters because it reveals how much of the AI spending boom simply flowed to foreign chip manufacturers and equipment suppliers rather than boosting domestic economic activity.
The data center construction frenzy that's reshaped rural American landscapes from Louisiana to Ohio didn't contribute as much as many assumed. Bhide found that investments in software and computers delivered more GDP impact than the physical infrastructure getting all the press attention. Meta's 5-gigawatt Hyperion facility in Louisiana and similar projects represent enormous capital outlays, but much of that spending goes to imported equipment.
Bespoke Investment Group reached similar conclusions in December, publishing analysis on X showing that AI-linked categories accounted for just 15% of quarterly GDP growth in Q2 and Q3 2025, with their overall GDP share under 5%. The firm titled their chart bluntly: "A unique Q1 created vastly over-stated 'AI share of Economy' perceptions."
The consumer spending story is more resilient than bears expected. Despite rising wealth concentration among top earners and slowing income growth, household consumption held up throughout 2025. Bhide expects that pattern to continue into 2026, supported by fiscal policy and what she describes as consumers still being "in good shape."
"The argument that only the rich are driving consumption and that somehow makes consumption vulnerable - we don't find a lot of evidence for that," Bhide told CNBC. "I don't think the hollowing out of consumption is that much of a cyclical risk."
The 2025 GDP numbers themselves tell a volatile story. Real GDP increased at a much higher-than-expected 4.3% annual rate in Q3 according to delayed government data. Q2 saw 3.3% annualized growth. But Q1 actually contracted at a 0.3% pace - the first negative quarter since early 2022 - before AI investment and consumer spending accelerated later in the year.
The MRB analysis carries implications for how investors should think about economic risk. If AI capex were truly holding up the entire economy, any slowdown in data center construction or chip orders would spell disaster. But if consumer spending remains the primary driver, the expansion has more diversified support.
Bhide's outlook for 2026 includes continued AI investment, Federal Reserve rate cuts and stabilization in unemployment aided by collapsed immigration levels. She's watching quarterly productivity statistics and job creation numbers as key indicators of whether the balanced growth pattern continues.
The research doesn't diminish AI's importance to corporate strategy or long-term productivity gains. Companies are still racing to build infrastructure and deploy models. But it does suggest that Wall Street's apocalyptic scenarios about what happens if AI spending slows are overstated. "Without an A.I. boom, there would have certainly been less GDP growth last year, but there would also be fewer imports, so that overall real growth would still have been decent, above 1.5%, due to solid personal consumption," Bhide wrote in the January 8 report.
That's a very different picture than the "AI or bust" narrative that shaped market psychology throughout 2025, when any hint of slowing capex sent tech stocks tumbling and analysts scrambling to reassess growth forecasts.
The myth that AI alone is propping up the American economy just took a serious hit. While artificial intelligence investment remains crucial for long-term competitiveness and productivity, the MRB Partners analysis shows that old-fashioned consumer spending still drives expansion in the world's largest economy. For investors, that means economic resilience doesn't hinge entirely on whether tech giants keep pouring billions into data centers. It also suggests that fears of an AI spending slowdown causing economic collapse are overblown - the consumer base is more durable than pessimists assumed. The real story of 2025 wasn't about AI saving the economy; it was about a more balanced expansion that just happened to coincide with an infrastructure boom.
