UK orders Google to let publishers opt out of AI search uses

The UK’s Competition and Markets Authority has moved to give publishers a real lever over Google’s AI search products, requiring the company to let them opt out if their content is used in features such as AI Overviews and AI Mode. The regulator called it a world first, and that makes the decision about more than Britain: it is now a test case for whether opt-out rights become the standard way governments police AI-powered search.

The new conduct requirement sits on top of a regime that came into force on 1 January 2025, after the CMA launched its Google search investigation on 14 January 2025. The authority later designated Google with strategic market status in general search and search advertising on 10 October 2025, saying it had heard from more than 80 stakeholders. In its consultation on publisher controls, opened on 28 January 2026, the CMA said Google handled more than 90% of general search queries in the UK, while more than 200,000 UK firms spent over £10 billion on Google search advertising last year.

At the center of the case is a familiar industry trade-off that has grown sharper as search answers become more synthetic. Publishers want visibility, but they also want control over how their reporting is reused. The CMA said its evidence included an internal Google experiment showing clicks to publisher sites drop when an AI Overview appears on a results page for queries that would otherwise have triggered one. That is the economics problem underneath the policy fight: AI answers can keep users inside Google while drawing on work produced elsewhere.

Under the June 3 decision, Google must provide effective controls over the use of publishers’ search content for training and grounding in generative AI both inside and outside search, publish clear and user-friendly information about how that content is used, and provide detailed metrics including impressions, clicks and click-through rate. It also must take reasonable steps to ensure content is clearly and accurately attributed with accessible links. Google has nine months to introduce page-level controls, and most of the other requirements are due within six months of publication. The CMA said it would keep monitoring implementation and could add further measures if Google’s May 2026 search changes alter how results are presented in the UK.

Publisher groups treated the decision as leverage, not victory. The News Media Association said the rules should help level the playing field, but only if implementation is efficient, enforcement is robust and political support holds. The Publishers Association said the ruling was a significant step because Google can no longer use publishers’ content to train models without consent, and because publishers should not be punished in search rankings if they opt out. The broader precedent is still the bigger story: if Google can be forced to separate discovery from consent in the UK, other regulators may decide they want the same tool.