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Famed investor Warren Buffett is usually not one to seek out recognition, but in a recent interview, the Oracle of Omaha took credit for Berkshire Hathaway (BRKA 0.34%) (BRKB 0.42%) taking a large stake in Alphabet (GOOGL 2.05%) (GOOG 2.06%). Buffett has never been known as a tech investor, so when this value-oriented guru takes a big stake in a leading tech company, the stock should probably be on your list of stocks to strongly consider.

Berkshire first took a position in Alphabet in the third quarter of last year, right before Buffett was set to retire at the end of 2025. It added to that position earlier this year when it invested $10 billion in a private placement to help Alphabet raise money to build out its AI infrastructure.

In the interview, Buffett said the key to investing was finding businesses that can earn a high return on capital for a long period of time. He and current Berkshire CEO Greg Abel appear to believe that Alphabet can do this with its AI infrastructure investments, and there is good reason to believe this will be the case.

Image source: The Motley Fool.

A long runway of growth As with the other big three cloud computing giants, Alphabet benefits from being able to split its computing power between its own internal needs and third-party demand. This gives it flexibility to help it generate the best return on its investments. What really separates the company from the pack, though, is its Tensor Processing Units (TPUs). It developed these chips more than a decade ago and has been improving upon them with new iterations ever since. It has also optimized its entire software and hardware stack around them.

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This gives the company a big cost advantage versus both AI model competitors and those in the cloud computing space that tend to rely mostly on Nvidia's much more expensive graphics processing units (GPUs). Alphabet's TPUs allow it to train its Gemini frontier models at a much lower cost than competitors like OpenAI. They also help the company save on inference expenses, giving it a structural cost advantage. This, combined with its distribution and ad-network edges, is why it can run a strong and profitable consumer AI business.

Alphabet's custom chips also give the company a cost edge in its fast-growing cloud computing business. It's seeing rapid cloud revenue growth, including 63% last quarter, but its cloud profits are climbing even faster, with cloud operating income tripling. Meanwhile, Alphabet's TPUs are so well regarded that Anthropic has started placing big TPU orders through its partner Broadcom, opening up another potential high-margin revenue stream.

Backed by Buffett's approval, Alphabet is a top AI stock to buy right now, with a long runway of growth ahead.

Geoffrey Seiler has positions in Alphabet and Broadcom. The Motley Fool has positions in and recommends Alphabet, Berkshire Hathaway, and Broadcom. The Motley Fool has a disclosure policy.

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Warren Buffett went on CNBC this morning and took personal credit for one of the more surprising moves in Berkshire Hathaway‘s (NYSE:BRK-B | BRK-B Price Prediction) recent history. Speaking with Becky Quick, the 95-year-old chairman said, “I initiated it” when asked about the conglomerate’s expanding stake in Alphabet (NASDAQ:GOOGL), offering his first public explanation of how Google’s parent became one of Berkshire’s largest technology holdings.

The remark resolves the question of whether new CEO Greg Abel or Buffett drove the pivot toward Big Tech, and it comes as Alphabet uses fresh capital, including a roughly $10 billion private placement from Berkshire earlier this year, to fund an AI infrastructure buildout that is straining even the largest hyperscalers’ cash flows.

The “Decider” Dynamic With Greg Abel Buffett announced he would step down in May of last year and formally handed the reins to Abel at the start of this year. That timing had led many to assume Abel authored the Alphabet position, which Berkshire first disclosed in Q3 2025 and has since expanded.

Buffett described the working arrangement plainly: “I am not doing anything that he doesn’t approve of. He’s not doing anything I don’t approve of. We talk all the time, but he is the decider,” referring to Abel. He also expressed regret over the delay, saying he “made a mistake” by not investing in Alphabet sooner, echoing his long-standing frustration at missing Google’s early rise despite seeing its advertising strength through Geico.

Even so, Buffett kept his enthusiasm measured. On Alphabet’s place in the portfolio, he said: “I would say that I don’t like it as well as at least four or five other businesses that we own.”

Berkshire’s Q1 2026 8-K, filed with the SEC on May 7, 2026, reported operating earnings of $11.35B and indicated that the company remained a net seller of equities. Berkshire shares trade around $500, up just under 1% year to date.

Why the $10 Billion Alphabet Placement Matters Alphabet is spending at a pace that reframes the tech capex conversation. Management guided to $175 billion to $185 billion in 2026 capital expenditures, and Q1 2026 capex more than doubled year over year to $35.67 billion. Google Cloud Q1 revenue reached $20.03 billion, up 63% year over year, with backlog nearly doubling quarter over quarter to more than $460 billion.

That backlog is the demand signal Buffett appears to be underwriting. He framed the competitive stakes directly: “The real question with Google and all of its competitors now, because they’re all laying out hundreds of billions, and that’s real money. That’s the game they’re playing now. They weren’t playing that game with computer software.”

Alphabet’s stock has responded to the disclosure and capex trajectory. Shares trade near $342.78, up 8% year-to-date and roughly 86% over the past year. The forward P/E sits around 25.

Berkshire as a Recurring Capital Partner? The forward question is whether the Alphabet placement is a one-off or a template. Berkshire ended Q1 2026 with a record $380 billion in cash. Hyperscalers are entering a phase in which AI-related capex is outpacing operating cash flow, creating an opportunity for large, patient private capital providers. Buffett’s other Big Tech position, Apple (NASDAQ:AAPL), was built entirely in the public market. The Alphabet deal is structured differently, and the “I initiated it” comment suggests Buffett himself sees value in being a preferred financing partner rather than just a market buyer.

For readers assembling a longer view of the portfolio’s next chapter, our 7 Warren Buffett Stocks to Buy Now briefing walks through which existing Berkshire holdings look most durable alongside the new tech tilt.

What to watch next: whether Berkshire’s next 13F expands the Alphabet position further, whether Abel signals appetite for similar structured deals with other hyperscalers, and how Alphabet’s AI monetization keeps pace with the capex line.

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