A post on X today by Hridoy Reh, an SEO consultant, reduced a year of browser engineering to one joke. "Anthropic: We have the best AI model," it reads. Then "Google:", followed by a screenshot of a Chrome window on Windows marked with six red arrows, each pointing at a way into Google's own artificial intelligence, all visible before a single website has loaded. The joke is about distribution beating model quality. The question underneath it is older and harder: is Google using Chrome, the browser behind 68.81% of global page views in October 2026 according to StatCounter, to put its own AI in front of rivals in a way competition law forbids?

In Short

Since mid-2025, Google has filled Chrome's address bar, New Tab Page and side panel with buttons that lead to its AI Mode search feature and its Gemini assistant. No court or regulator has ruled that this breaks competition law, and the main remedies against Google in the US, the EU and the UK were written for contracts, ranking and phones rather than for what Google builds into its own browser. For advertisers and publishers, every query that starts in one of those buttons lands in AI Mode, a format Google told investors in October monetises at a lower rate, and one that puts an AI answer ahead of links to websites.

What the screenshot shows

The image in the post shows Chrome's New Tab Page with Google as the default search engine. One arrow points at the address bar itself, where the word "gemini" has been typed. The other five mark AI entry points. The address bar carries an "AI Mode" button on its right edge. The search box in the middle of the page, labelled "Ask Google", has its own "AI Mode" button. Below it sit two cards: "Do more with AI Mode", subtitled "Create, summarize, plan", and "Create images", subtitled "Reimagine, illustrate, edit", marked with a banana icon, the emblem of Google's Nano Banana image model. The first tile in the shortcuts row is Gemini, placed ahead of Facebook, Gmail, X, Threads, YouTube and Yahoo.

One caveat applies to that last arrow. Chrome fills the shortcuts row either from a person's most-visited sites or from shortcuts the person adds, so the screenshot alone does not establish that Google put the Gemini tile there. No report reviewed for this article describes Google inserting a Gemini shortcut into that row by default.

Early replies were short. One account answered "and the browser you're reading this in". Another wrote that "answering a model claim with a search bar is its own review of the models." Within about an hour, the post had drawn 593 views.

How the buttons arrived

None of this happened at once. Chrome added an AI Mode shortcut to the desktop New Tab Page in July 2025, according to 9to5Google. Then, on September 18, 2025, Google brought Gemini into Chrome for US desktop users on Mac and Windows with English settings, made AI Mode reachable from the address bar and promised agent features "in the coming months". Mike Torres, Chrome's vice president of product, described the release as the largest upgrade in the browser's history.

Mobile followed in October 2025, when Chrome 141 for Android and iOS added an AI Mode shortcut under the New Tab Page search field, according to 9to5Google. On January 28, 2026, Google redesigned the Gemini side panel and opened a preview of auto browse, an agent that completes tasks on websites, to Google AI Pro and AI Ultra subscribers in the US on macOS, Windows and Chromebook Plus, The Register reported. Nano Banana image generation went into the same panel.

The address bar changed again in February 2026. Chrome 145 on desktop turned the AI Mode button into a full prompt box, with a "plus" menu offering recent tabs, image and file uploads, a "Create Images" tool, Deep Search and a choice of Gemini 3 models, according to 9to5Google on February 21. On April 16, 2026, the New Tab Page's AI Mode button began opening an inline prompt box rather than sending people to the Google website, with the rollout starting in the US. A week later Glenn Gabe spotted Google experimenting with Deep Search and Create Images options directly beneath the New Tab Page search box, Search Engine Roundtable reported on April 23. The "Create images" card in today's screenshot sits in the same place.

Gemini in Chrome spread geographically at the same time. Google extended it to Canada, New Zealand and India on March 13, 2026, with more than 50 additional languages. On June 10, 2026 it reached Latin America, the Middle East and Africa, taking it from 54 locales to 172, according to PiunikaWeb. On July 14, 2026, UK desktop users gained access on the same day Google detailed auto browse. On Android, Chrome 150 began placing a Gemini button in a redesigned bottom bar, Android Authority and Android Headlines reported on July 14, and by August 20 Android Authority described "Ask Gemini" as the default shortcut in Chrome's toolbar on Android, replaceable through a long press.

The test Google called an error

The sharpest moment came in June. A Chrome Canary flag named "Fulfill Searchbox Queries in AI Mode" redirected every ordinary query typed into the address bar or the New Tab Page search box into an AI Mode thread, 9to5Google reported on June 5, 2026. The flag was off by default, had to be switched on by hand, and appeared only on desktop. The code commit described it as exploration with no plans to ship. Rajan Patel, vice president of search engineering at Google, wrote on X the same day that the flag had been an error and that Google was not planning to make AI Mode the default for Chrome searches.

That statement matters, because a forced redirect from the classic results page into AI Mode would have been the clearest example of Chrome steering behaviour. It did not ship. The buttons did.

What the code says about rival search engines

Chromium, the open-source project underneath Chrome, answers one question the screenshot cannot. The file that decides whether a browser is eligible for AI Mode, aim_eligibility_service.cc, contains a function named IsAimAllowedByDse that returns true only when the default search provider is Google. Its network annotation describes the feature as coupled to Google default search, and an enterprise policy, AIModeSettings, lets administrators switch it off. In plain terms, a Chrome user who picks Bing, Yahoo or DuckDuckGo as the default engine does not get Google's AI Mode buttons, which PiunikaWeb also reported on July 2, 2026.

The same report described a Canary flag called "AIM 3P entrypoint", meant to enable the address bar AI Mode entry point for third-party search engines. No Google statement accompanied it, and its status is unknown. A different change points the other way: Chrome 157, promoted to the stable channel on November 3, 2026, lists an address bar button that shows a third-party search engine's own AI chat on Android, according to a Chrome Geek summary of the release notes. Which engines qualify, and whether desktop follows, is not stated in that summary.

Removal is possible but scattered. Google's help page says the AI Mode shortcuts disappear from the address bar if a user right-clicks it and unselects "Always show AI Mode". The Gemini button can be unpinned, according to The Register, although the keyboard shortcut survives. The New Tab Page button sits under separate settings. All of it appears unless a user acts.

What "abuse" means in law

Abuse of a dominant position is prohibited in EU law under Article 102 of the Treaty on the Functioning of the European Union, and a similar test applies in the UK. It has two parts. A company must first be dominant in a defined market, and then its conduct must harm competition, for instance by tying one product to another so that rivals of the second product are shut out.

The Commission has used that theory against browsers and against Google before. In March 2004 it fined Microsoft €497 million for tying Windows Media Player to Windows. In December 2009 it accepted Microsoft's commitment to show a browser choice screen, and in March 2013 it fined the company €561 million for failing to display it. In July 2018 the Commission fined Google €4.34 billion for, among other things, tying its Search app and Chrome to the Play Store licence on Android. The General Court cut the fine to €4.125 billion in 2022, and on July 2, 2026 the Court of Justice dismissed Google's final appeal.

The Android case had Chrome as the product being pushed. The current question flips it: Chrome is the vehicle and AI is the cargo. That distinction creates the first obstacle. No decision found for this article holds that Chrome itself is dominant in a browser market. The EU designated Chrome a core platform service under the Digital Markets Act on September 6, 2023, but gatekeeper designation is an ex ante label, not a finding of dominance. Judge Amit Mehta's 2024 ruling in Washington concerned general search and search text ads, with Chrome treated as a distribution point for search rather than as a monopoly in its own right.

The second obstacle is product definition. Is AI Mode a separate product, or simply a new screen of Google Search? The UK's Competition and Markets Authority treated it as part of search when it designated Google with strategic market status on October 10, 2025, bringing AI Overviews and AI Mode into scope while leaving the Gemini assistant out. If AI Mode is search, then Chrome showing AI Mode buttons to people who chose Google search is Google promoting one part of its search engine inside the default its users picked, and the Chromium gate on the default engine supports that reading. Gemini is harder to fold in. It is a separate app with its own subscription tiers, and Alphabet said on October 28 that the Gemini app had passed 1 billion users. A Gemini panel built into the most-used browser is closer to the classic tying pattern than an AI Mode button is.

The third obstacle is evidence of harm. Tying cases turn on foreclosure: whether rivals lose access to users because of the bundle. Perplexity made its Comet browser free on October 2, 2025, and OpenAI launched ChatGPT Atlas on October 21. Microsoft builds Copilot into Edge. Building one's own assistant into one's own browser is the industry pattern. What sets Chrome apart is scale: StatCounter's October 2026 figures, reported by PiunikaWeb on November 2, put Chrome at 68.81% across all platforms and 66.98% on desktop, against 16.6% for Safari and 5.33% for Edge across all platforms.

Washington: remedies written for contracts

The US case produced the most detailed rules, and they say almost nothing about Chrome's interface. Judge Mehta found on August 5, 2024 that Google had unlawfully maintained a monopoly in general search. His remedies ruling of September 2, 2025 rejected the Justice Department's request to force a sale of Chrome. It barred Google from exclusive contracts for Search, Chrome, Google Assistant and Gemini, required default deals to run no longer than a year, and ordered data sharing and syndication to qualified competitors, including some generative AI companies. Payments for placement stayed legal. Google had paid distributors $26.3 billion in 2021, according to the trial record.

The final judgment, entered on December 5, 2025, runs for six years. The remedies target Google's dealings with others: Apple, Samsung, Mozilla, carriers, rivals that want data. What Google ships inside its own browser sits outside that frame, because a button in Chrome is product design rather than a distribution contract.

The appeal has not changed that. Google filed its notice of appeal on January 16, 2026, and the Justice Department and states cross-appealed on February 3. Google's opening brief of May 22 asked the D.C. Circuit to throw out the entire liability finding and argued that the remedies had no basis as applied to generative AI companies. The government's response, filed in July, defends extending the remedies to some generative AI firms, and the cross-appeal argument listed in its table of contents concerns the district court's refusal to ban search payments. Reports in February said the government would seek a Chrome sale again; the brief's table of contents lists no such argument. Google filed a reply on September 29. On October 5 both sides jointly asked the court to prioritise the case so that oral argument could be heard as early as December 9, Law360 reported. As of November 10, no argument date had been set, according to the TopDisputes case tracker.

Testimony during the remedies hearing in April 2025 also showed Google paying Samsung to preinstall the Gemini app, according to 9to5Google. Contracts like that are exactly what the judgment regulates. A Gemini button inside Chrome needs no contract at all.

Brussels: a fine that stopped short of AI

The European Commission came closest to the subject in July 2026, and still stopped short. On July 23, 2026, it fined Google €890 million in two Digital Markets Act non-compliance decisions: €460 million for self-preferencing in Google Search and €430 million for anti-steering rules on Google Play. The search decision issued cease-and-desist orders covering nine services, from the product ads unit to flights, trains, lodging, Google Maps, translation, sports information and games. AI Overviews and AI Mode were absent. Google submitted proposals on applying the decision's principles to both, and the Commission said dialogue on them would continue.

Google had 60 days, until about September 21, to comply. Kent Walker, Google's president of global affairs, said the decisions broke everyday products and Google weighed an appeal. On September 28, the Initiative for Neutral Search, a coalition of complainants, published side-by-side results recorded on September 26 that it said showed continued self-preferencing, and asked the Commission to enforce the rules across Google Search, AI Overviews and AI Mode included. Those are the coalition's claims; no Commission response had been published in the sources reviewed.

Article 6(5), the rule behind the €460 million fine, governs how Google ranks results inside search. It does not, on its face, address which buttons a browser shows before a search begins. The DMA does impose browser duties, including choice screens for default search engines, and Chrome has carried one in the EU since March 2024. But a choice screen governs which engine handles typed queries, and Chrome's own code already hides AI Mode from anyone who chooses a rival.

Two other EU tracks touch Google's AI without reaching Chrome. On July 16, 2026, the Commission adopted binding specification decisions that force Google to open Android features, from hotword activation to screen automation, to rival AI assistants by August 1, 2027, with concurrent hotword detection by August 1, 2028, and to share anonymised search data with eligible rivals, AI chatbots included. Chrome is not covered by either decision. Separately, on December 9, 2025, the Commission opened an Article 102 investigation into Google's use of publisher and YouTube content for AI Overviews and AI Mode. That probe concerns inputs, not distribution.

The Commission's first DMA review, due by May 3, 2026, declined to revise the law. It said the Commission would assess whether AI services are integral parts of already designated services, and so already covered, or distinct services, and whether some should be designated as virtual assistants. Gemini in Chrome itself has not launched in the EU, according to reports from June and July 2026. Google gave no reason in the announcements reviewed; Engadget attributed the gap to GDPR.

London: AI Mode inside, Gemini outside

The UK regime has the widest net on paper. Beyond the search designation, the CMA designated Google's mobile platform on October 22, 2025, covering Android, app distribution and the mobile browser and browser engine, which the regulator identified as Chrome and Blink. None of the case updates published since then mention AI assistants.

The CMA's first proposed conduct requirements on January 28, 2026, included choice screens on Android and Chrome. A revised version published on September 23, 2026 set out a 12-slot choice screen, estimated about £5 million over five years to extend it to Chrome on desktop and iOS, and said a service should not be excluded only because it has an AI component, so AI assistants could in theory qualify. Responses were due by October 9. That requirement, if adopted, would let rival engines and possibly AI assistants compete for the default slot. It would not, as drafted, regulate the AI Mode buttons Google shows to those who choose Google.

Google has warned before that UK rules could slow product launches. UK users received Gemini in Chrome on desktop in July 2026, ahead of the EU.

The case for Google, and against

Google's arguments in these proceedings run along consistent lines. In the US appeal it has pointed to OpenAI and Perplexity as evidence that competition in search is changing, and in Europe Kent Walker has argued that regulation should improve products rather than make them worse. On the evidence gathered here, several points help it. AI Mode entry points depend on users having chosen Google as their engine. Chrome lets users hide them. Chrome's engine list has grown, with Brave Search added in July 2026. And Chrome 157 has started to make room for third-party AI chat on Android.

Critics of Google's distribution power make a simpler point. Defaults decide behaviour, which is why Google paid more than $26 billion a year for them, and the court in Washington found those payments helped keep a monopoly in place. Chrome is a default Google controls outright, with no partner to pay. An extra AI button there costs Google nothing to place, while a rival assistant needs a download, a sign-in and a habit to break. The joke in today's post works for that reason: a better model still has to reach people, and Google owns the browser behind nearly seven in ten page views without signing a single distribution contract for it.

Why marketers are watching

For advertisers, where a query starts decides which inventory it meets. AI Mode is a different ad environment from the classic results page. On October 28, Google extended ads in AI Mode to ten more countries, and advertisers there cannot opt out. The same day, Alphabet reported third-quarter search revenue of $63.35 billion, up 12%, and on the earnings call executives said the strong growth of AI Mode queries had an impact because AI Mode was monetising at a lower rate. Alphabet shares fell 12.6% on October 29, the worst day since 2004. Each Chrome button that routes a query into AI Mode therefore moves queries toward a format Google itself says earns less, at least for now.

Publishers face the click side of the same trade. AI-generated answers already cut clicks to top-ranked pages: an Ahrefs study of 300,000 keywords found the top-ranked page lost 34.5% of its clicks when an AI Overview appeared, a figure cited around the first EU complaint over AI Overviews in July 2025. AI Mode goes further, replacing the list of links with a conversational answer. Google is also binding AI more tightly to Search elsewhere: on November 3, it said Search would be off for K-12 student accounts until school administrators switch it on, with no school version offered without AI Mode and AI Overviews.

What the evidence does not show

No court or regulator has found that Chrome's AI integration is unlawful, and no complaint aimed specifically at Chrome's AI buttons was found for this article. The screenshot does not prove Google placed the Gemini shortcut. The "Do more with AI Mode" card has no dated announcement in the sources reviewed. The fate of the "AIM 3P entrypoint" flag is unknown, as is whether Chrome 157's third-party AI chat button will reach desktop. And Gemini in Chrome's absence from the EU has no official explanation.

What the record does show is narrower and more useful. The three regimes that have acted against Google each regulate something else: contracts in Washington, ranking and Android in Brussels, choice screens in London. The browser interface itself, where Google has been adding AI entry points month by month since mid-2025, is the one layer none of them has yet addressed directly. The D.C. Circuit argument, if it happens in December, and the Commission's dialogue with Google on AI Overviews and AI Mode are the next places where that could change.

Timeline

Summary

Who: Google, which builds Chrome, AI Mode and Gemini; the European Commission, the US Justice Department and Judge Amit Mehta, and the UK Competition and Markets Authority; rivals including OpenAI, Perplexity, Microsoft and Brave; and Hridoy Reh, whose post on X raised the question.

What: Since September 2025, Google has added AI Mode buttons to Chrome's address bar and New Tab Page, a Gemini side panel, image and research tools, and a Gemini button on Android. Chromium code shows AI Mode is offered only to users with Google as their default search engine. No authority has ruled the integration unlawful, and the main remedies against Google cover contracts, search ranking, Android and choice screens rather than Chrome's interface. The EU's €460 million self-preferencing fine of July 23, 2026 left AI Overviews and AI Mode outside its scope.

When: The post appeared today, November 12, 2026. The Chrome changes run from July 2025 to Chrome 157 on November 3, 2026; the US appeal could be argued from December 9, 2026.

Where: Chrome worldwide, with Gemini in Chrome available in 172 locales including the US and, since July 2026, UK desktop, but not in the EU according to mid-2026 reports; legal proceedings in Washington, Brussels and London.

Why: Chrome serves 68.81% of global page views according to StatCounter, so its defaults shape where queries go. Queries routed into AI Mode meet a different ad format that Google says monetises at a lower rate, and send fewer clicks to publishers, which makes the browser interface a commercial question for advertisers as much as a legal one.