The past week has been a stark reminder of where the world’s ad spend rivers flow and what drives them.
Alphabet reported annual revenue exceeding $400 billion for the first time, while Meta surpassed $200 billion as AI powers ad creative, targeting, and measurement.
The giants have unveiled a roadmap for marketers on where consumer attention will be focused in 2026 and how AI is already changing the economics of digital advertising.
Search continues to dominate Google, which saw revenue rise 17% year-over-year to $63 billion in the quarter. CEO Sundar Pichai told investors that both Answer Engine’s AI Overview and AI Modes have reached record usage levels and are now “scaling.” Retail, financial and healthcare advertisers are among the industries most focused on budget, he said.
Last week, Meta reported 24%, outpacing Google due to its aggressive implementation of AI across its ad stack. CFO Susan Lee said the combination of AI integration into ad targeting and content recommendations led to a 3.5% increase in click-throughs on Facebook and a 1% increase in conversions on Instagram.
Meta also announced that it doubled its computing power for training and optimizing ad ranking models in the past quarter.
This result shows that the world’s two largest advertising platforms are increasing their share of the overall market. Google’s advertising business generated $82 billion in the fourth quarter, primarily from search and YouTube. Advertising revenue accounts for 97% of Meta’s total revenue, which amounted to $58 billion in the past quarter.
The advent of AI advertising
Both companies used their financial statements to position AI not as a future opportunity, but as a driver of current performance.
Google said that by implementing Gemini across its ad quality stack, it is improving query understanding and monetizing longer and more complex searches. the Chief Business Officer Philipp Schindler said Gemini’s improvements allow it to serve ads on queries that were “previously difficult to monetize.”
Google’s AI Max product is currently used by hundreds of thousands of advertisers, unlocking billions of new queries.
According to Schindler, “L’Oréal used AI Max in 800 unique campaigns across 30 brands in 23 countries. With AI Max, L’Oréal was able to maximize its presence across the consumer journey, drive consumer growth, and increase revenue by 23% for direct-to-consumer brands like NYX.
“Aritzia, a leading Canadian fashion house, used AI Max to discover new high-value customers missed through traditional strategies, increasing conversion value by 80% in the fourth quarter.”
Sales of video generation tools built on the company’s AI infrastructure totaled $10 billion in the fourth quarter, Meta said.
With AI handling creative generation, audience matching, and bid optimization, both companies claim to be optimizing marketing outcomes at an unprecedented scale.
Video attention economy
YouTube stood out. Revenue in 2025 will reach $60 billion from advertising and subscriptions, marking a milestone in its evolution into a dominant streaming service.
According to Nielsen data, YouTube has been the No. 1 streaming platform in the U.S. for almost three years in a row. The living room is the base. In October 2025, viewers listened to over 700 million hours of podcasts on devices in their living rooms. This is a 75% increase over the previous year.
The platform is also deepening its influence on live sports. NFL Sunday Ticket’s subscriber growth is strong, and the company announced plans to launch a new YouTube TV package with 10 genre-specific tiers to offer subscribers more flexibility.
YouTube’s short-form video product, Shorts, currently receives an average of 200 billion views a day, and Google has revealed that it generates more revenue per watch hour than traditional in-stream video in the U.S. and several other markets.
YouTube’s ad revenue rose 9% year over year to $11.4 billion in the quarter, but the company noted that the performance was driven by strong U.S. election spending starting in the fourth quarter of 2024.
On the creator side, AI tools are rapidly being adopted. In December alone, more than 1 million channels used Google’s new AI creation tools every day. Over 20 million viewers also used the new Ask a Question feature powered by Gemini to learn more about the content they were watching.
Google is also focusing on shoppable formats. During the five-day shopping period from Thanksgiving to Cyber Monday in the US, we piloted Shoppable Masthead, an interactive ad format that allows viewers to browse products and receive links directly to their mobile phones.
On an earnings call, Meta’s Mark Zuckerberg positioned AI-generated video and content as the next evolution of media formats. He predicted “an explosion of new media formats that are more immersive and interactive.”
The company’s experimental Vibes feed within the Meta AI app, which displays short AI-generated videos, represents an early implementation of this vision, he said.
This comment shows that the giants are strategically positioning themselves.
While YouTube focuses on its strengths in long-form content, podcasts, and live events for traditional lounge room TV and streaming services, Shorts competes directly with TikTok and Instagram Reels.
While Meta’s 3.58 billion users across its family of apps offer unparalleled video content delivery, our investments in AI signal a future where content creation itself becomes increasingly automated.
infrastructure muscle
Both companies announced eye-popping spending guidance to stay ahead in the AI race. Google told investors to brace themselves, doubling spending to $185 billion. Meta has also almost doubled to US$135 billion, which together is equivalent to New Zealand’s GDP. Anant Ashkenazi, Alphabet’s chief financial officer, said 60% goes to servers and the rest goes to giant data centers to host everything.
The flywheel of investing in computing to sell to customers is what powers Google’s cloud division to thrive. Revenue is expected to reach US$70 billion over the next 12 months, up 48% from the past quarter.
“We’re acquiring more new customers faster. We’re also signing bigger deals. The $1 billion-plus deals are more than the last three years combined,” Pichai said.
Ashkenazi added, “In the fourth quarter, revenue from products built on our generative AI models increased nearly 400% year over year.”
Notable new partnerships include Apple. Pichai confirmed that Gemini will work together to power Apple Intelligence and next-generation Siri.
Meta’s chief financial officer Lee added that despite the spending, demand was so high that the company will remain “capacity constrained” over the next year as additional production capacity comes online.
For marketers, Google and Meta are in the process of building infrastructure to improve ad targeting, faster creative iterations, and more advanced measurement. It also shows that the competitive moat around these platforms continues to deepen.
Subscription growth
Despite the advertising win, both companies made it clear that they are building meaningful subscription businesses. Google reported strong growth for YouTube Music over the quarter, with 325 million paid subscribers led by Google One and YouTube Premium. Mehta revealed that WhatsApp’s paid messaging has reached an annual run rate of $2 billion, while Zuckerberg hinted that Meta AI will soon support subscriber and advertising revenue models.
Both companies see subscription growth as a bet to diversify against ad market fluctuations while building deeper user relationships that inform ad targeting.
regulatory cloud
And despite strong earnings, Google faces unresolved legal threats on a number of fronts.
A federal judge is expected to rule on remedies in the ad tech antitrust case in the coming weeks. A U.S. judge has already ruled that Google illegally monopolizes part of its ad stack, and is considering whether to force Google to sell part of its ad stack. The Department of Justice also announced this week that it would appeal Google’s loss in its search antitrust lawsuit, seeking tougher penalties.
Regulators are also making rounds overseas. British authorities last week proposed allowing publishers to opt out of Google’s AI overview.
None of the analysts on the earnings call made this point, but Brian Wieser, principal analyst at Madison & Wall, told the New York Times:
“But on the advertising side, the scale is unparalleled, so it’s hard to imagine anything that would cause a loss of revenue.”
Impact on marketers
First, it’s worth noting that both Google and Meta are evolving their AI-powered advertising capabilities faster than most customers can adapt. This indicates that they expect long-term profits.
Second, they are engaged in an arms race to use AI to gain a unique data advantage.
Third, Gemini and Meta models are disrupting the marketing industry as they generate insights and creative assets at a scale and speed that is impossible for humans.
Fourth, the video attention economy continues to fragment across formats and surfaces.
YouTube is chasing TV budgets like never before, and now has unparalleled dominance as the leading living room streamer.
Meta revealed that its video generation tool reached an annual revenue run rate of $10 billion in the fourth quarter.
