If you opened a new Search campaign in Google Ads any time recently, you probably didn't get asked whether you wanted AI Max turned on. It already was. That's the state of things as of October 2026: a feature that launched in beta in May 2025 is now the default on new Search campaigns, Dynamic Search Ads have been migrated into it, and Google spent the first half of October rolling out a batch of new reporting controls that make it look like a feature settling into maturity rather than a beta still finding its shape.

This is a practitioner's walkthrough of what AI Max actually does, what you can and can't control, what changed this month, and how to roll it out on an account without handing Google's automation more rope than you're comfortable with. Google's own help center overview of AI Max for Search campaigns is the canonical reference underneath everything that follows.

What AI Max for Search actually is

Google announced AI Max for Search campaigns on May 6, 2025, describing it as "a comprehensive suite of targeting and creative enhancements" that rolled into Search campaigns as a single opt-in. Three components, bundled together:

Search term matching. This expands what your ads can show on beyond the keywords you've actually entered, using broad match and what Google calls "keywordless technology." Google's own documentation on how AI Max works says the system "learn[s] from your current keywords, creatives and URLs to optimize which relevant searches your ads appear on," and reporting distinguishes which impressions came from this expanded matching through dedicated AI Max match type labels.

Text customization. The system generates new headlines and descriptions using, in Google's words, "text from your existing ads, landing page copy, and assets along with generative AI for Google Ads," aiming for copy that's more relevant to the specific search that triggered the ad than a single static RSA asset set could be.

Final URL expansion. When this is on, Google can route a click to a different page on your site than the one set in your ad, if it decides that page is a better match for the query. The documentation is specific about the guardrail here: it "will only send traffic to URLs that are query relevant and themed to your ad group," and the feature requires text customization to be active, because the system needs the landing page content and the ad copy to stay in sync.

The original announcement also leaned hard on a performance claim, which is worth quoting with its source attached rather than repeating as fact: Google said advertisers turning on AI Max typically saw "14% more conversions or conversion value at a similar CPA/ROAS," with campaigns running mostly exact and phrase match keywords seeing up to 27% uplift, and cited case studies from L'Oréal (2x conversion rate, 31% lower cost per conversion) and MyConnect (16% more leads, 13% lower cost per action). Those are Google's own reported figures from its own case studies, not independent numbers, and should be read that way.

How we got from beta to default

AI Max didn't stay a beta opt-in for long. The timeline, pieced together from Google's own posts and trade coverage:

Google announced in April 2026 that it was upgrading Dynamic Search Ads to AI Max, with trade outlets including Marketing Dive and Adweek reporting the same week that AI Max for Search had come out of beta entirely and that Google planned to deprecate the legacy DSA tooling advertisers had relied on for years. By July 2026, Search Engine Land reported that Google itself was claiming AI Max had opened up billions of new monetizable searches, and AI Max expanded into Shopping campaigns the same month. In August 2026, PPC Land and Search Engine Roundtable both reported that Google would auto-upgrade campaign-level broad match keywords and automatically created assets into AI Max starting September 1, 2026, meaning advertisers running plain broad match Search campaigns didn't get a choice about adopting at least part of this.

By September 23, 2026, Google's own blog post titled "We're bringing AI Brief to more languages and adding a new AI Max reporting feature" confirmed two things: AI Brief, a tool letting advertisers steer AI Max using their own written description of their business, audience, and messaging strategy, expanded from closed beta into seven more languages (Dutch, French, German, Italian, Japanese, Portuguese, and Spanish), and Google introduced a unified reporting view inside Google Ads showing, in the company's words, "what search terms triggered your ads, which creative assets the user saw, and exactly where they landed on your website."

That unified reporting view is the same capability MediaPost covered under the headline "Google Ads Enhances AI Max, Enables Unified Reporting" in early October, and it's a meaningfully better answer to the complaint advertisers have had about AI Max since launch: that the automation was a black box. Whether it's a complete answer is a separate question, covered below.

What's new in the first two weeks of October 2026

Four separate pieces of coverage landed within a few days of each other, all pointing at the same underlying theme: Google giving advertisers more visibility into what AI Max is actually doing before and after it does it.

Search Engine Land reported on October 8 that Google Ads now lets advertisers preview AI Max-generated ad copy before opting in, rather than finding out what the system generated only after it started serving. Search Engine Roundtable reported the same day that Google added new AI Max reporting columns covering Brand Inclusion, Commission, Locations Of Interest, and Optimized Targeting, giving advertisers a more granular breakdown of which of AI Max's targeting and creative mechanisms drove which results, rather than one lump "AI Max" bucket. Separately, Search Engine Land reported on October 7 that Google added new AI Max columns specifically aimed at deeper campaign analysis. The following day, ContentGrip reported that AI Max now lets advertisers inspect actual text samples the system generated, and Search Engine Roundtable confirmed Google enabled text customization asset previews around the same date.

Read together, this is Google responding, with a few months' lag, to the two loudest complaints advertisers have had about AI Max since the beta: you couldn't see what the AI was going to say before it said it, and once it was live, the reporting didn't separate out which specific mechanism (search term matching, text customization, final URL expansion) was responsible for which result. Neither complaint is fully resolved by one week of updates, but the direction is clear and it's moving toward more visibility, not less.

Separately, and worth distinguishing from AI Max entirely: Search Engine Land also reported on October 7 that Google is testing a new "Direct Offer" asset for promotions that appear inside AI Mode specifically. That's a different surface. AI Max governs how your existing Search campaigns get matched to queries and how their copy gets written. Ads inside AI Overviews and AI Mode are a separate, newer ad placement Google is still actively building out, and the two shouldn't be confused when you're explaining either one to a client; ChatGPT ads explained and how Google keeps expanding AI Overviews both cover the broader shift toward ad inventory showing up inside AI-generated answers rather than beside them.

The controls that actually exist

This is the part most coverage of AI Max skips past, and it's the part that determines whether you can run this safely on a brand-sensitive or budget-constrained account.

Brand controls, at two levels that don't behave the same way. You can set brand inclusion or exclusion lists at the campaign level, under Campaign Settings, in the AI Max section. You can also set brand inclusions separately at the ad group level. Google's own setup documentation is explicit about the interaction: "the ad group-level brand inclusions will override campaign-level brand inclusions," which means a blanket campaign-level exclusion can get quietly bypassed by an ad group-level setting if you're not checking both.

URL exclusions, with a real dependency most people miss. You can exclude specific URLs from Final URL expansion, but Google's documentation states plainly that "URL exclusions require Text customization and Final URL to be turned on." If you've disabled text customization to limit how much the system rewrites your ad copy, your URL exclusion list stops doing anything, because the feature it's gating isn't active in the first place.

Text customization has a cascading off-switch. It's enabled by default. Turn it off and, per Google's own documentation, "assets will be reported as 'Removed' and no longer serve," and disabling it also automatically disables Final URL expansion, since the two features depend on staying in sync with each other.

Negative keywords still work. Google's own FAQ on AI Max confirms negative keywords are respected even with AI Max enabled, which is one of the more reassuring confirmations here if your safety net for broad match expansion has always been a strong negative keyword list.

Manual CPC breaks the feature's core value. Google states that AI Max's full capabilities, "particularly Search Term Matching," won't function properly under manual CPC bidding, and recommends a conversion-based bidding strategy instead. If your account is still on manual CPC for any reason, turning on AI Max without addressing bidding first is turning on a feature that can't actually do its main job.

Pinned assets get overridden under specific conditions. Pinning an RSA headline or description to a fixed position is a tool advertisers use for legal disclaimers or must-include copy. Google's documentation notes pinning isn't respected when text customization and Final URL expansion are both turned on at once, which is a real risk for any account using pinning for compliance reasons.

Editor and API support lagged the feature itself. Google's documentation noted that support through Google Ads Editor and the API was expected to follow later, after the initial rollout, which matters if your workflow depends on managing campaigns through either tool rather than the web interface.

When to test it, and when to wait

If you're starting a brand-new Search campaign today, you're testing it whether you planned to or not, since it's on by default. The actual decision point for most accounts is narrower: whether to leave it on for existing campaigns that were auto-upgraded, and how aggressively to lean into the optional pieces (text customization, Final URL expansion) versus keeping them tightly controlled.

Good candidates for an earlier, more open test: accounts with strong existing negative keyword hygiene, healthy conversion volume to feed a conversion-based bidding strategy, and relatively low brand-safety sensitivity (categories where an unexpected adjacent search term or a slightly rewritten headline isn't a real reputational risk).

Accounts that should move slower: anything regulated or compliance-heavy where pinned disclaimer copy matters, any account still on manual CPC, lead-gen accounts where Final URL expansion routing someone to the wrong page could tank a form-fill rate, and any account for a brand name that overlaps with a different company's product (where loose search term matching could pull in genuinely irrelevant or even competitor-adjacent traffic without a brand exclusion list already in place).

A safe rollout plan

Start with the negative keyword list, before anything else. AI Max's search term matching leans on broad match and keywordless technology to expand reach; your existing negative keyword list is still the main lever you have for keeping that expansion inside a reasonable radius, and Google confirms it's still respected.

Set brand inclusion and exclusion lists at both the campaign and ad group level before you turn on search term matching, not after, remembering that an ad group-level setting silently overrides a campaign-level one.

Build a URL exclusion list for any page you genuinely don't want ad traffic landing on (thin pages, pages mid-redesign, pages without a clear conversion path) and confirm text customization and Final URL expansion are both on, since the exclusion list does nothing otherwise.

Run it as a formal experiment against your existing campaign structure before a full rollout, using Google Ads' own campaign experiments feature, rather than switching a live, revenue-bearing campaign over directly and hoping the aggregate numbers look fine a month later.

Check the new reporting columns (Brand Inclusion, Commission, Locations Of Interest, Optimized Targeting, plus the unified search-term-to-asset-to-landing-page view) weekly during the first month, not just the top-line conversion number. The entire value of the October reporting updates is that you can now see which mechanism is actually driving a result; use that, because a top-line lift with no visibility into why is exactly the "black box" complaint this round of updates was meant to fix.

Confirm your bidding strategy is conversion-based before expecting Search Term Matching to do anything useful, and if you're relying on pinned RSA copy for legal or compliance reasons, test with text customization or Final URL expansion off until you've confirmed pinning holds the way your account needs it to.

FAQ

Does AI Max replace Performance Max or Dynamic Search Ads?

It replaces Dynamic Search Ads specifically. Google migrated DSA functionality into AI Max starting in April 2026 and has been deprecating the legacy DSA tooling since. Google's own FAQ describes AI Max as "an evolution of DSA and Performance Max with Final URL expansion, while including the convenience and control of Search campaigns," positioning it as a middle ground rather than a straight swap for Performance Max, which remains a separate, broader campaign type.

Can I turn AI Max off entirely for a Search campaign?

Yes, through the AI Max section in campaign settings, though be aware that disabling text customization also disables Final URL expansion automatically, and that broad match and automatically created assets for existing campaigns were auto-upgraded into AI Max starting September 1, 2026 regardless of whether you'd opted in to the newer features.

Is AI Max the same thing as ads showing inside AI Overviews or AI Mode?

No. AI Max governs matching, creative, and routing for standard Google Search campaigns. Ads appearing inside AI Overviews or AI Mode answers are a separate, newer placement Google has been testing (including a "Direct Offer" asset format reported in early October 2026), and the two systems shouldn't be conflated when explaining either to a client. What is zero-click search covers the broader pattern both of these fit into: more of the answer, and now more of the ad inventory, staying inside Google's own interface instead of sending a click to a website.

How much of Google's claimed 14% conversion lift should I expect on my own account?

Treat it as Google's own reported average from its case studies, not a guaranteed outcome for any specific account. Lift depends heavily on how tightly your current keyword match types already capture available search volume, how strong your existing ad copy and landing pages already are, and your category's brand-safety sensitivity. The only way to know your own number is to run the experiment and look at your own data.

What's the single biggest risk in turning this on without preparation?

Turning on search term matching and Final URL expansion on an account with a thin or stale negative keyword list and no brand inclusion/exclusion setup. That combination is where most of the genuine horror stories about broad automation in Google Ads come from, and every one of the controls covered above exists specifically to prevent it.

If you're rolling this out this month, start with the negative keyword audit and the brand lists before you touch anything else, and give the new reporting columns a full billing cycle before deciding whether the automation is earning its keep on your account specifically.