Nick Fox is Google's senior vice president (SVP) for Knowledge and Information, the division known inside the company as K&I, which builds and runs Google Search, the advertising sold against it, Maps and commerce. Sundar Pichai, chief executive of Google and its parent Alphabet, appointed him in October 2024, making him the executive answerable for Alphabet's largest source of revenue. For marketers the name works less as a biography than as a reference point. When Fox describes how AI Mode retrieves information, how many clicks Google sends to websites or how the search auction will change, the statement usually becomes the company's position, and publishers, regulators and advertisers then test it against their own data.

What the job covers

K&I groups four product areas: Search, Ads, Geo (Maps and Earth) and Commerce, which includes Shopping and payments. Pichai set out that scope in the October 17, 2024 announcement that moved Prabhakar Raghavan, Fox's predecessor, into a chief technologist role. The division employed about 20,000 people in June 2025, according to CNBC.

Two lieutenants run most of what advertisers touch. Liz Reid, vice president of Search, is responsible for the results page and its AI features. Vidhya Srinivasan added commerce to her advertising remit in January 2025, becoming vice president of Ads and Commerce, and continued to report to Fox, according to MediaPost. The sums are large: Search advertising brought in 63.3 billion dollars in the second quarter of 2026, up 17%.

Fox has described several operating mechanics in public. New features pass through a staged rollout: internal testing, an opt-in Labs group, then live experiments on 0.1%, 1% and 5% of users before general release, a sequence he said in an April 2026 interview applied to both AI Overviews and AI Mode. In the same conversation he explained query fan-out, AI Mode's practice of splitting one request into "tens, maybe hundreds, maybe even thousands" of sub-queries. He also said Gemini models had produced "a massive step up" in the prediction systems that estimate, before an ad is shown, whether a user will click or convert. Ads inside AI answers, he said, keep the labelling and separation from organic content used in classic search.

Cost is the other lever. In an interview published on September 25, 2026, Fox listed three techniques for serving AI answers at Google's volume: model routing, which sends easy questions to small models and hard ones to large models; caching of stored answers; and vertical integration from chips to data centres. He gave no cost per query or cache share. In April 2026 he had cited a cut in Search latency of more than 35% over five years. His preferred measure of success is volume. "The metric that I look at the most is the number of queries that people are doing," he said.

From ad quality to AI Mode

Fox studied economics at Harvard and worked as a consultant at McKinsey & Company before joining Google in July 2003. His first long tenure was in search advertising, in the product then called AdWords. By 2008 he was director of business product management, described by Search Engine Land contributor Andrew Goodman as a primary architect of the ads quality system. Its best-known output is Quality Score, a 1-to-10 keyword rating, weighted heavily towards click-through rate, that works alongside the bid to decide whether an ad appears and where. Landing page quality acted as a near-binary check; when it failed, Fox told Goodman, it "usually causes a fairly significant hammer in an account". He later became vice president of product management for search ads, and Pichai credited him in 2024 with establishing the quality-first approach that Google's ads business still relies on.

The next decade took him outside advertising. As vice president of communications products, he announced Project Fi, a phone service running over Sprint and T-Mobile networks and public Wi-Fi, on April 22, 2015, with plans from 20 dollars a month plus 10 dollars per gigabyte of data. It became Google Fi in November 2018. Pichai also credited him with spearheading Google's push for RCS (Rich Communication Services), the carrier messaging standard meant to replace SMS. He went on to run product and design for Search and the Google Assistant, the title CNBC used in June 2022, when he took over commerce, payments and the Next Billion Users effort on an interim basis after Bill Ready left to run Pinterest.

His time as SVP has coincided with the conversion of Search into an AI product. AI Mode appeared in Search Labs in March 2025, reached all US users that May and passed one billion monthly users by May 2026, on Google's own figures. In August 2025 he opened a Search Labs opt-in for a rebuilt Google Finance. Restructuring came too. A June 2025 memo from Fox offered US staff in K&I buyouts, telling strong performers he hoped they would stay while calling the scheme a "supportive exit path" for those not aligned with the strategy, according to CNBC.

Why marketers track his statements

Fox speaks for the division on the two questions that matter most to marketers: what AI does to traffic, and what it does to the auction. In July 2025 he said AI Overviews were driving more than 10% more queries for the query types that show them. In December 2025 he told publishers that optimising for AI search is the same as ordinary search engine optimisation (SEO) and rejected standardised licensing deals. On July 17, 2026 he posted that Google was sending billions of clicks to websites every week through AI features in Search.

For advertisers, the remarks about the ad system weigh more. On the day of Google Marketing Live, May 20, 2026, he discussed AI Mode ad formats, Direct Offers and Universal Cart, a cross-merchant basket spanning Search, Gemini, Gmail and YouTube, while declining to confirm plans for ads in the cart. On agentic booking, he has said the final step stays with the user and completes on the partner platform rather than inside Google, which bears on where conversions can be tracked. In September 2026 he said Google was re-engineering its search advertising system, without a timetable or product names. Queries, not clicks to the web, remain his headline metric, and queries are the inventory every search auction runs on.

Disputed claims and criticism

Fox's traffic claims are the most contested part of his record. On May 21, 2025 he questioned the methodology of studies showing traffic losses, saying "the web is thriving". Independent data points the other way. Ahrefs found in February 2026 that AI Overviews correlate with a 58% fall in click-through rate for top-ranked pages, and a randomised experiment with 1,065 desktop Chrome users found outbound organic clicks fell 39.8% when an overview appeared. "Billions of clicks" has no denominator; the total can rise while each site receives less. Google's Network segment, which sells ads on other companies' sites, fell 4% in the first quarter of 2026 and 1% in the second.

The internal record sits awkwardly beside the public optimism. Notes from an October 25, 2024 meeting, posted on the website of the US Department of Justice (DOJ), record Fox setting out three options: Search does not erode, Search loses traffic to Gemini, or it loses traffic to ChatGPT. "(1) is preferred but the worst case is (3) so we should support (2)," the notes read, according to Search Engine Land.

Publishers have challenged him directly. Adam Gallagher, co-founder of the recipe site Inspired Taste, confronted Fox on LinkedIn on December 2, 2025 over AI answers reproducing recipes and photos. Without standardised licensing, small sites negotiate alone, a gap PPC Land highlighted when Google sued the scraping company SerpApi while operating the web's largest crawler.

His European arguments draw the sharpest rebuttals. Fox called Google's compliance with the Digital Markets Act (DMA) "the biggest degradation ever" to Search, citing lost live flight prices, trip-date search and some spam protections, and offered no metric. The Commission's July 23, 2026 decisions, which fined Google 890 million euros, require non-discriminatory ranking rather than the removal of features, and competition lawyer Thomas Hoeppner has argued that the removals were Google's choice. Fox also cast search data sharing under Article 6(11) as a privacy threat, although Google has shared anonymised query data with rivals under its own scheme since March 2024.

Not to be confused with

Prabhakar Raghavan led K&I from 2018 until October 2024, then became Google's chief technologist. References to "Google's search chief" before late 2024 generally mean him.

Liz Reid is vice president and head of Google Search, reporting to Fox. Both are routinely called Google's head of search, and some reports have given Fox her title.

Fox Corporation, owner of Fox News and the streaming service Tubi, is an unrelated media group whose advertising sales feature often in trade coverage.

Recent developments

Google switched on a redesigned results page in the European Economic Area (EEA) on September 8, 2026, and Fox told Reuters it would degrade the user experience for Europeans. In the September 25 interview, recorded in Brussels with Pietro Valetto, a doctoral student at the University of Antwerp, he repeated that charge, rejected the "zero click" narrative and said Google sends billions of clicks to the web through its AI experiences.

Today Google said it had appealed to the EU General Court against the July decisions requiring it to share search data with rival engines from January 2027 and to open Android to rival AI services, according to Euronews. The company cited privacy risks, the same ground Fox occupied in Brussels.

Timeline

  • July 2003: Fox joins Google after working as a consultant at McKinsey & Company
  • 2008: Search Engine Land describes him as director of business product management and a primary architect of the AdWords ads quality system
  • April 22, 2015: Announces Project Fi as vice president of communications products
  • February 23, 2018: Writes Google's announcement that the Assistant will reach more than 30 languages
  • November 28, 2018: Project Fi is renamed Google Fi
  • June 2022: Takes over commerce, payments and Next Billion Users on an interim basis after Bill Ready's departure for Pinterest
  • October 17, 2024: Pichai names Fox SVP of Knowledge and Information, succeeding Prabhakar Raghavan
  • October 25, 2024: Internal meeting notes record Fox's three options for Search traffic
  • January 22, 2025: Vidhya Srinivasan adds commerce to her remit, continuing to report to Fox
  • March 5, 2025: AI Mode appears in Search Labs
  • May 21, 2025: Fox disputes traffic-loss studies on the AI Inside podcast
  • June 2025: Fox's memo offers US staff in K&I buyouts
  • July 24, 2025: Says AI Overviews drive more than 10% more queries for the query types that show them
  • August 27, 2025: Opens a Search Labs opt-in for the rebuilt Google Finance
  • December 2, 2025: Recipe publisher Adam Gallagher confronts Fox on LinkedIn
  • December 15, 2025: Tells publishers AI search optimisation is ordinary SEO and rejects standardised licensing
  • April 7, 2026: Cites a Search latency reduction of more than 35% over five years
  • April 23, 2026: Describes query fan-out, staged rollouts and ad labelling in a podcast interview
  • May 19, 2026: Google reports AI Mode above one billion monthly users
  • May 20, 2026: Discusses AI Mode ad formats, Direct Offers and Universal Cart
  • July 17, 2026: Posts that AI features in Search send billions of clicks to websites every week
  • July 23, 2026: The European Commission fines Google 890 million euros under the DMA
  • September 8, 2026: Google launches a redesigned EEA results page; Fox tells Reuters it degrades the experience
  • September 25, 2026: Interview with Pietro Valetto published on YouTube
  • September 29, 2026: Google appeals the DMA search data sharing and Android decisions to the EU General Court

Summary

Who: Nick Fox, senior vice president for Knowledge and Information at Google, a company veteran since July 2003 appointed to the role by Sundar Pichai. Liz Reid (Search) and Vidhya Srinivasan (Ads and Commerce) report to him. Advertisers, publishers, merchants and EU regulators are the groups most affected by his decisions.

What: The executive in charge of Google Search, search advertising, Maps and commerce, and the company's most prominent voice on AI Overviews, AI Mode, traffic to websites and Digital Markets Act compliance. His earlier roles include search ads quality, Project Fi, communications products, the Google Assistant and commerce.

When: Appointed on October 17, 2024. His public statements since then run from the May 2025 traffic dispute through the September 25, 2026 Brussels interview, with Google's appeal against the EU data sharing order filed on September 29, 2026.

Where: Google's headquarters in California, with the effects of his division's decisions felt wherever Google Search operates. Regulatory friction is concentrated in the European Economic Area.

Why: Search advertising remains Alphabet's largest revenue source, and Fox is rebuilding it around AI-generated answers. His claims about queries, clicks and ads set the terms of the debate that publishers, advertisers and regulators then contest with their own evidence.