What Is AI Max for Search? How Google Ads’ AI Layer Works, the Migration Timeline and October 2026 Updates

AI Max for Search is a suite of AI targeting and creative features that you turn on inside an existing Google Ads Search campaign; it is not a new campaign type. It adds search term matching, text customization and final URL expansion. Google scheduled the automatic upgrade of two legacy setups for September 2026 and plans to migrate Dynamic Search Ads in February 2027.

What is AI Max for Search?

AI Max for Search is Google’s name for a group of AI features that sit on top of a normal Search campaign. Google’s help page calls it a comprehensive suite of targeting and creative features and says plainly that it is not a new campaign type. You switch it on in the settings of a Search campaign you already run.

Google announced it on 6 May 2025 in a post by Brian Burdick, Senior Director of Product Management for Google Ads, and said it would roll out to all advertisers globally in beta later that month. That matters for how you think about it: your keywords, ad groups, bid strategy and budget remain. AI Max changes which searches you can match and which headline, description and landing page each searcher sees.

If you are still deciding where paid search fits in your plan, start with our guides to SEO vs PPC and SEO vs SEM.

How does AI Max for Search work?

According to Google’s help page, AI Max has two parts: search term matching, and an asset optimization panel that holds text customization and final URL expansion. Each one has its own switch.

Two details from the help page are easy to miss. First, when final URL expansion is on, pinned responsive search ad assets are not used if Google chooses a more relevant URL. Second, Google says AI Max will not be effective in a campaign that is limited by budget, and it shows an alert when that is the case.

Reporting changed too. The search terms report gains an “AI Max” match type and a source column that separates broad match expansion from keywordless matching. The landing pages report adds a “Selected by” column, and the asset report shows spend and conversions for generated assets.

What changed with AI Max in October 2026?

Two smaller updates were reported by Search Engine Land this week. Neither changes how AI Max works; both make it easier to see what it is doing.

A preview of AI-written copy before you opt in. On 8 October 2026, Search Engine Land reported that Google Ads is adding text customization asset previews. After you enter a final URL, Google analyzes the landing page and generates up to 10 sample headlines and descriptions in about 30 seconds, without your having to switch text customization on first. The previews appear in the Asset optimization section when you create or edit a Search campaign. Google says the feature supports all languages currently available for text customization and most business categories, with adult content excluded. The article adds a caution: these are examples, not necessarily the exact copy that will serve.

Three new reporting columns. On 7 October 2026, Search Engine Land reported that Google Ads is rolling out columns for Locations of interest, Optimized targeting and Brand inclusions, so you can see which campaigns use those settings. The update was spotted by Vivek Gupta and shared on LinkedIn; the article does not cite an official Google announcement, and it notes the columns may not yet appear in every account.

In our view, the preview is the more useful of the two for small advertisers. The main reason people hesitate over text customization is not knowing what Google will write in their name, and a 30-second sample answers part of that question before any money is spent.

Is AI Max for Search mandatory? The migration timeline

For most Search campaigns, AI Max is still optional. For three legacy features it is not. Google set out the schedule in a Google Ads Developers Blog post on 12 August 2026, which Search Engine Land covered on 14 August 2026.

The migration does not switch every AI Max feature on. Per the Developers Blog, the settings depend on where the campaign came from:

Existing brand inclusions and exclusions carry over. For Dynamic Search Ads, Google says unmigrated campaigns become standard Search ad groups with AI Max enabled once the February 2027 window runs.

Does AI Max actually improve results?

Google says advertisers who activate AI Max in Search campaigns typically see 14% more conversions or conversion value at a similar CPA or ROAS, rising to 27% for campaigns that still rely mostly on exact and phrase match keywords. The footnote matters: this is Google internal data from 2025, and the 27% figure is based on non-retail advertisers whose campaigns took more than 70% of conversions or conversion value from exact or phrase match keywords.

The launch post also cites two advertisers. Google says L’Oréal saw a conversion rate twice as high at a 31% lower cost per conversion, and that MyConnect, an Australian utility connection service, got 16% more leads at a 13% lower cost per action. These are the vendor’s chosen examples; Search Engine Land’s guide to AI Max repeats them as case studies shared by Google, and none of the sources we reviewed offers independent verification.

In our view, the honest answer is “it depends on your account”. More reach is not the same as more profit, and a wider net of search terms can pull in clicks you would not have paid for. That is why the testing method below matters more than any average. If you are new to structured testing, our guide to A/B testing in digital marketing covers the basics.

How do you test AI Max safely?

1. Check the budget first. Google says AI Max will not be effective in a campaign limited by budget.
2. Run an experiment, not a switch. A Search Engine Land guide by Christine Askew recommends Google Ads experiments: choose “campaign features and settings”, then “AI Max for Search campaigns”. Traffic is split 50/50 between the AI Max arm and a control.
3. Preview the copy. Use the new preview in the Asset optimization section to read sample headlines and descriptions before enabling text customization.
4. Decide on final URL expansion deliberately. Search Engine Land’s 2025 guide noted it was on by default when you opt in. If only some pages should receive paid traffic, add URL exclusions or leave it off.
5. Set brand controls. Add brand inclusions or exclusions so the wider matching stays inside the searches you want.
6. Fix tracking templates. Google’s help page warns that templates without a compatible {lpurl} pattern can cause 404 errors on dynamically chosen landing pages.
7. Read the reports weekly. Filter the search terms report by the AI Max match type and check the “Selected by” column in the landing pages report. Remove generated assets that are off-brand.

Whatever the result, judge it on conversions and cost per conversion rather than clicks. Our guide on how to measure campaign performance lists the metrics worth tracking.

What should advertisers do now?

• Open each Search campaign and check whether AI Max is already on. Campaigns that used campaign-level broad match or automatically created assets were scheduled for the September 2026 upgrade window.
• List every campaign that still uses Dynamic Search Ads and plan the move before 1 February 2027, so you choose the settings instead of receiving the defaults.
• If your campaign came from campaign-level broad match, consider adding exact match copies of your most important keywords. Google’s help page says that after the move, broad keywords are no longer treated as exact match in prioritization.
• Review landing pages. With final URL expansion, Google can send clicks to other pages on your site that it judges more relevant, unless you exclude them.
• If you use scripts or third-party tools, ask whether they still call the legacy campaign-level broad match or automatically created assets entities in the API.
• Look for the three new columns (Locations of interest, Optimized targeting, Brand inclusions) in your campaign table; they are still rolling out.

One note for advertisers in Lebanon and the Gulf: the sources above do not list which languages text customization supports, so we could not confirm how it behaves for Arabic campaigns. Use the preview on an Arabic landing page and read the output before you enable it. AI Max is one more example of platforms moving toward automation that plans and writes for you, a shift we explain in what agentic AI means and in our look at AI in SEO.

Frequently asked questions

What is AI Max for Search?

AI Max for Search is a set of AI-powered targeting and creative features that you switch on inside an existing Google Ads Search campaign. Google describes it as a suite of features, not a new campaign type. It combines search term matching, text customization and final URL expansion.

Is AI Max a new campaign type like Performance Max?

No. Google’s help page says AI Max is not a new campaign type. It is a setting inside a standard Search campaign, so your keywords, ad groups, bidding and budget stay where they are.

Is AI Max mandatory in Google Ads?

Only for some legacy setups. Google scheduled an automatic upgrade of Search campaigns that used campaign-level broad match or standalone automatically created assets for 1 to 30 September 2026, and it plans to migrate Dynamic Search Ads from 1 to 28 February 2027. Other Search campaigns can still choose whether to turn AI Max on.

What happens to Dynamic Search Ads?

Dynamic Search Ads keep serving for now. Google says a reminder goes to affected accounts on 15 January 2027, automatic migration runs from 1 to 28 February 2027, and creating new DSA ad groups is then removed permanently. Unmigrated DSA campaigns become standard Search ad groups with AI Max enabled.

Can I preview the ad copy AI Max will write?

Yes, according to Search Engine Land’s report of 8 October 2026. Google Ads can generate up to 10 sample headlines and descriptions from your landing page before you opt into text customization. They are examples, not necessarily the exact copy Google will serve.

How much does AI Max improve results?

Google’s own figure is that advertisers who activate AI Max typically see 14% more conversions or conversion value at a similar CPA or ROAS. That number comes from Google internal data from 2025, and the sources we reviewed offer no independent verification, so test it in your own account.

Can I use AI Max without final URL expansion?

Yes. Text customization and final URL expansion are separate toggles in the asset optimization panel, and search term matching can be turned off at ad group level. Final URL expansion needs text customization to be on, but not the other way round.

How should I test AI Max safely?

A Search Engine Land guide by Christine Askew recommends a Google Ads experiment rather than a full switch. Choose the campaign features and settings experiment type, then AI Max for Search campaigns, which splits traffic 50/50 between an AI Max arm and a control.

Sources

• Google Ads Help: About AI Max for Search campaigns (accessed 11 October 2026)
• Google, The Keyword: Unlock next-level performance with AI Max for Search campaigns (6 May 2025)
• Google Ads Developers Blog: Migrate Campaign-level Broad Match and Automatically Created Assets to AI Max (12 August 2026)
• Search Engine Land: Google sets AI Max migration timeline for Search campaigns (14 August 2026)
• Search Engine Land: Google Ads lets advertisers preview AI Max-generated ad copy before opting in (8 October 2026)
• Search Engine Land: Google Ads adds new AI Max columns for deeper campaign analysis (7 October 2026)
• Search Engine Land: AI Max for Search: Everything you need to know (3 October 2025)

Feature status as reported on 11 October 2026. Google rolls features out gradually and can change dates, so what you see in your Google Ads account may differ.

Written by the Gradezilla team · Reviewed by Bashar Amin