Google has launched AI Max for Search campaigns - a one-click feature suite that brings keywordless targeting, search term expansion, and dynamic ad customisation together under a single toggle. The headline number is attention-grabbing: advertisers that activate AI Max typically see 14% more conversions at a similar CPA or ROAS. For campaigns still running predominantly on exact and phrase match keywords, the figure is 27%.
What AI Max for Search actually does
Three things happen when you activate AI Max. First, search term matching expands your reach beyond your current keyword list using broad match and keywordless technology - Google's AI learns from your existing keywords, creative assets, and landing pages to find relevant searches you'd otherwise miss. Second, dynamic text customisation adapts your ad copy in real time to match the specific query, context, and user. Third, URL expansion allows Google to direct users to the most relevant page on your site rather than exclusively the landing page you specified.
Each of these features existed in some form before. AI Max brings them together with improved controls and reporting that were previously absent.
The conditions that make it work
The performance uplift is real - but it isn't universal. AI Max performs best in accounts with strong existing conversion data, clean tracking, well-structured ad groups, and landing pages that accurately reflect what searchers want. Accounts with thin data histories, poor conversion tracking, or landing pages misaligned with user intent won't see 14% improvement.
Before activating AI Max, the checklist: Is conversion tracking firing accurately? Are search themes set to guide the AI toward relevant queries? Are landing pages matched to the intent of each ad group? Is there enough conversion volume to give the algorithm meaningful signal?
The controls that matter most
What makes AI Max different from previous broad match iterations is the reporting transparency. You can see which search terms the AI is targeting, assess whether they're commercially relevant, and add negative keywords where expansion has gone off-target. The search term usefulness indicator tells you whether your manually provided search themes are adding reach beyond what the AI would find independently.
URL expansion is the feature that requires the most careful oversight. If your site has pages that are technically relevant but commercially unfocused - blog posts, policy pages, general category pages - URL expansion will find them. Limiting URL expansion to specific high-performing pages is often the right move at launch.
The honest take
AI Max for Search is worth testing in any campaign that's structurally sound and has enough conversion volume. The one-click simplicity is genuine. The performance uplift is documented. But the setup work that makes it reliable - conversion tracking quality, search theme definition, negative keyword management, URL controls - is exactly the same work that makes any Google Ads campaign perform well. The AI amplifies what's already there. It doesn't compensate for what's missing.