Google AI ads in 2026: what changed for media buyers

Open your Search campaign settings this week. Look for two toggles: automatically created assets, and campaign-level broad match. If either is on, your campaign converts to AI Max for Search on September 1. Google told advertisers on August 5. This post lists what moved in Google’s AI ads stack this year. It is dated and sourced. Check your account before the deadline.

The September 1 auto-upgrade is the deadline to know

AI Max for Search came out of beta this year. Google is folding legacy Search setups into it. Starting September 1, campaigns with automatically created assets or campaign-level broad match auto-upgrade (announcement). You can still create new Dynamic Search Ads until the sunset begins. The rest of the DSA migration moved to February 2027 after advertiser feedback (source).

AI Max bundles three features. Search term matching expands the queries your ads can match. Text customization writes your headlines and descriptions. Final URL expansion picks the landing page. Upgrades from auto-created assets switch on search term matching and text customization. Broad match campaigns get search term matching only.

The opt-out is simple, and it expires. Turn off the two trigger settings before September 1. Then the upgrade does not apply to you. Decide that on purpose, not by accident.

Google’s own number: an average 7% more conversions or conversion value at a similar CPA or ROAS. That applies when you use all three features together. The figure comes from Google internal data, 2026 (source). That is Google’s own figure, so treat it as direction, not a promise. The r/PPC threads on the notice are full of accounts checking which campaigns are affected (reddit). The answer is in the toggles, not in the rumor mill.

Ads in AI Mode: new formats, no direct targeting

The bigger change came at Google Marketing Live in May. Ads moved inside the AI answer itself. Google is testing formats that show up inside AI Mode responses (Google blog, Ads in AI Mode). They are built with Gemini and powered by AI Max and Performance Max.

There is no buy box for the AI Mode slot. You cannot target it or bid on it as a placement. You qualify through clean feeds, real assets, and the right campaign setup. Adthena detected brand ads inside AI Overviews earlier this year (r/marketing). So the formats are live, not a demo. Treat early results as signal, not as your new baseline.

The creative suite got bigger, and so did the disclosure layer

Prompt-based creative now lives inside Google Ads. Demand Gen lets you generate new image assets from a prompt in the UI (Google Help). Agency coverage of GML describes a Gemini and Veo powered suite (Making Science). It produces batches of on-brand versions in under a minute. That changes how fast you produce creative. It also changes what you must label.

On July 9, 2026, Google added a “How this ad was made” panel to My Ad Center (Google blog). Ads created with Google’s own tools get labeled automatically. Ads created elsewhere with AI get a manual control you should set. SynthID marks the output underneath. If you ship AI creative without setting the labels, you ship assets that break the rules.

Measurement moved while nobody was looking

The reporting side changed with less fanfare. Branded search conversions arrived as a new conversion action in Demand Gen and Performance Max (source). It records when someone searches your brand after seeing your ad.

Those are useful, and they are not revenue. They measure lift and demand you create. Use them as a second opinion on top of your conversion columns. The same rule applies to the AI Max 7% figure. Vendor numbers are context. Your account is the test.

What to check before September 1

Five checks cover almost every account at risk. I went through the campaign list for the accounts I manage this week. Most of them had at least one item to fix. Run these before the deadline, not after.

• Find the two trigger toggles: automatically created assets, and campaign-level broad match.
• Decide on AI Max now. Opt out on purpose, or review the new settings on purpose.
• Audit negative keyword lists. Search term matching expands your reach.
• Check disclosure settings for any AI-generated creative before it ships.
• Set a baseline this week, so the September shift is readable.

None of this means the media buyer is obsolete. The job moved to inputs: feeds, assets, negatives, and reporting discipline. That is the same pattern as the August 17 bidding change. It mirrors how Advantage+ changed the job on Meta’s side. Google and Meta converge on the same shape. The platform decides, and the buyer feeds it well.

The same habits run on the content side. Briefs, review loops, and kill decisions run the workflow that holds up. Paid media runs on feeds, assets, and negatives. If you run both Google and Meta, compare the two change logs. They move on different calendars. More in the paid media section. New dates and numbers land every quarter. This page gets refreshed when they do.

Filed under Paid Media · As of August 2026