5 Honest Takeaways After Testing Google’s AI Max Campaigns

Kit Fox

Director of Revenue Marketing Strategy

Over a 30-day period, we put Google’s AI Max campaigns to the test, evaluating across three critical areas: performance, efficiency, and accuracy. Our goal? Determine if AI-driven campaigns could save time and deliver better results.

Before we address our five honest takeaways, we first need to understand what Google AI Max is, how it works and why it is important.

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What is Google AI Max?

Google AI Max is Google’s latest automated campaign type designed to simplify and enhance digital advertising performance through artificial intelligence. Unlike traditional campaign setups that rely heavily on manual inputs and optimization, AI Max uses Google’s machine learning systems to manage everything from targeting and bidding to creative selection and placement. The goal is to help advertisers reach their audience more efficiently across Google’s network—including Search, Display, YouTube, and Discover—while driving the best possible results with minimal manual effort.

How Google AI Max Works

AI Max pulls from an advertiser’s existing assets—like headlines, descriptions, and visuals—and uses Google’s algorithms to automatically generate, test, and optimize ad combinations. It continuously learns from campaign data, identifying which messages and placements perform best for different audiences. Over time, the system refines its approach, adjusting bids, keywords, and creatives in real time to maximize performance based on conversion goals. While this automation can save time and improve reach, it also means advertisers have less control and visibility into which assets are being used and why.

Why Does Google AI Max Matter?

AI Max represents a significant step toward the future of fully automated advertising. For marketers, it offers both opportunity and challenge—streamlining campaign management and potentially improving ROI, but also requiring trust in Google’s “black box” decision-making. As Google continues to move toward automation-first ad solutions, understanding how AI Max operates and testing its performance is crucial for advertisers looking to stay competitive. It’s not just about replacing manual optimization—it’s about learning how to strategically guide and complement AI-driven systems to achieve better, more data-informed results.

Our 5 Honest Takeaways

1. It Made Stuff Up (Kind Of)

One of our first observations was that, instead of generating completely new copy, Google’s AI often pulled from our past ads and website content. Headlines, descriptions, and sitelinks were reused and were often outdated or no longer accurate.

While this approach can save the AI some effort, it also creates risks. Outdated information can mislead potential customers or reduce click-through rates if the pages linked are no longer relevant or live. This reinforced the need for careful review, even when using AI-assisted campaigns.

2. It Gave Us More Content

On the positive side, AI Max doubled the amount of ad copy we had at our disposal. It generated additional headlines and descriptions, giving us more options to test and mix.

However, this quantity doesn’t necessarily translate to quality. While it expanded our testing combinations, the new content still required oversight to ensure it aligned with our messaging and brand standards. The takeaway? AI can produce volume, but our oversight and review is still critical to maintain relevance and accuracy.

3. It Slightly Improved Click-Through Rate

Over the 30-day period, we observed a slight uptick in click-through rate (CTR). The increase was small and not enough to be a game-changer, but it shows signs for potential in the future.

We anticipate that a longer testing period, paired with the incremental optimizations offered through AI Max, might produce more meaningful results. This suggests that while AI can contribute to performance, its impact may grow gradually rather than immediately.

4. It Didn’t Save Us Time

Despite promises of automation and efficiency, the time savings were negligible. In some cases, we spent more time correcting errors than we would have crafting the ads manually.

Combined with the modest CTR lift, this made AI Max less efficient than expected during this trial. The experience highlighted that AI automation still requires oversight and that early adoption may not always reduce workload, at least not until the tools are more refined.

5. It’s a Sign of What’s Coming

While results were mixed, AI Max provided a preview of the future of advertising on Google. As AI tools improve and become more integrated into standard workflows, we expect features like automated copy generation, audience optimization, and dynamic testing to become part of everyday campaign management.

Bringing AI Max’s advancements into core campaigns could ultimately drive meaningful gains in both efficiency and performance once the tools become faster, more accurate, and fully integrated.

Our Final Verdict:

Google’s AI Max campaigns didn’t revolutionize our workflow or deliver major performance gains — yet. However, our experiment provided valuable insight into where AI-driven advertising could be headed.

As Google continues refining these tools, the potential for smarter, faster, and more automated campaigns is undeniable. For marketers, AI Max represents a step in the right direction, a glimpse into the future of campaign management.

If you haven’t tested it yet, we encourage you to run your own AI Max experiment. Seeing firsthand how it interprets your data, automates creative testing, and optimizes performance can offer powerful lessons and help you stay ahead as AI continues to reshape digital advertising.

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Kit Fox

Kit Fox is Altitude’s lead internal brand storyteller and content creator. Before joining Altitude in 2024, Kit spent a decade in the publishing industry, where he served as an editor for, Runner’s World. Men's health, and Men’s Journal, special projects director for Hearst Magazines, and director of membership for Lehigh Valley Public Media. He is the co-author of “Mighty Moe: The True Story of a Thirteen-Year-Old Running Revolutionary.”