Alphabet’s AI Bet Is Getting Very Expensive
- Search remains the cash engine, with $224.5 billion in 2025 revenue and 13% growth.
- Google Cloud grew 63% year over year in Q1 2026 and reached a $462 billion backlog.
- Alphabet is now selling custom TPU chips to select customers, with most early revenue expected in 2027.
- CapEx guidance rose to $180 billion to $190 billion for 2026, and management expects a significant increase in 2027.
- A December 2025 DOJ Search judgment restricts distribution and requires search data sharing while Google appeals.
Cloud is racing, margins may lag
Alphabet is still one of the strongest businesses in the world. Google Search, YouTube, Android, and Chrome give it huge reach. Gemini gives it an AI product layer across that reach. Google Cloud is now the main growth story, with Q1 2026 revenue up 63% year over year and backlog at $462 billion.
The bull case is simple: Alphabet may own the full AI stack. It has users, data, models, cloud software, data centers, and custom TPU chips. If Cloud keeps converting backlog into revenue, the AI spend can look smart even if profits are pressured for a while.
The bear case is also clear. Management guided 2026 CapEx to $180 billion to $190 billion and said 2027 CapEx should rise significantly again. That means more depreciation, which is the accounting cost that hits profits as servers and data centers wear down over time. The company also has to execute a huge buildout while power, water, land, and chip supply are tight.
The Q1 2026 10-Q added one important detail. Alphabet expects some revenue from direct TPU hardware sales later in 2026, but the significant majority is expected in 2027. That shifts a key proof point into next year and adds a new question: how much of the $462 billion Cloud backlog is high-margin cloud software, and how much is lower-margin hardware?
Ads fund the AI buildout
Alphabet makes most of its money by selling ads. Search ads work because a user tells Google what they want, and advertisers bid to be shown near that intent. YouTube adds another large ad surface, with both brand ads and direct response ads.
The next big engine is Google Cloud. It sells computing power, storage, data tools, Workspace software, and AI products. It is also beginning to sell TPU hardware directly to a small group of customers that want specialized AI chips in their own data centers.
Subscriptions, platforms, and devices add a third stream. This includes YouTube Premium, YouTube TV, Google One, app store economics, and Pixel hardware. These are large, but they do not carry the same thesis weight as Search and Cloud.
The model breaks if the old profit pool weakens before the new one pays back. AI Overviews may change how people use Search, and antitrust remedies may change how Google gets default placement. At the same time, the cloud buildout is pulling cash into servers and data centers faster than ever.
Search, chips, video, and moonshots
Google Search & ads
The core profit engine. Search generated $224.5 billion in 2025 revenue and is now being rebuilt around AI Overviews.
Google Cloud & TPUs
The fastest-moving business. Q1 2026 Cloud revenue grew 63%, and the backlog reached $462 billion, including future TPU hardware demand.
Gemini
Alphabet’s AI model family. It powers AI features across Google products and gives developers and companies tools to build their own AI apps.
YouTube
A global video platform across long-form video, Shorts, and connected TVs. It earns money from ads and subscriptions.
Android & Pixel
Android gives Google mobile reach around the world. Pixel devices help show off Google software and AI features.
Waymo
Alphabet’s self-driving car unit. It is still small in the company mix, but it is now serving over 400,000 paid rides per week.
Search still pays most bills
Revenue mix uses fiscal 2025 disclosures from Alphabet’s annual filing and listed product lines. Google Cloud’s share is rising quickly in 2026, but Search remains the largest single pool.
What could go wrong
The CapEx bill hits earnings
High impact · High oddsAlphabet plans to spend $180 billion to $190 billion on CapEx in 2026 and expects a significant increase in 2027. This spending supports AI and Cloud demand, but it also creates years of depreciation expense. If Cloud growth slows, margins could fall hard before investors see the payoff.
Cloud backlog may not mean rich profits
High impact · Medium oddsThe $462 billion Cloud backlog is powerful evidence of demand. But the mix matters. If a large part is TPU hardware sales, margins may be lower and execution risk may be higher than for normal cloud software.
Search remedies weaken the moat
High impact · Medium oddsA December 2025 final judgment in the DOJ Search case restricts how Google distributes its services and requires data sharing and syndication for some competitors. Google is appealing. If the appeal fails, the core Search business may lose part of its distribution advantage.
TPU supply adds new liabilities
Medium impact · Medium oddsAlphabet is moving from using its TPU chips mostly inside its own systems to supplying hardware to select customers. The Q1 2026 10-Q says this can increase costs and operational complexity. Large, long-duration agreements also create liability if Alphabet, customers, or vendors fail to perform.
AI answers change Search behavior
Medium impact · Medium oddsAI Overviews give direct answers on the Search page. That can help users, but it may also reduce clicks to websites and change how ads perform. Management has said monetization can be similar, but this remains an open question as usage grows.
In one breath
What does Alphabet actually sell?
Alphabet mostly sells advertising on Search, YouTube, and partner sites. It also sells cloud computing, Workspace software, subscriptions, devices, and now some custom TPU hardware to select customers.
Why is Alphabet spending so much on data centers?
AI needs huge amounts of computing power. Alphabet is buying servers, chips, and data center capacity to meet Cloud customer demand and support Gemini across its products.
Why is the valuation score low even though the business is strong?
The company has excellent scale and financial health, but the stock still has to justify a very large AI investment cycle. Investors are paying for future Cloud growth while margins may be pressured by depreciation.
What is the biggest thing to watch next?
Watch Google Cloud growth and margins together. Fast revenue growth matters, but the investment only works if the backlog turns into profitable revenue.