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October 17, 2025
AI unites predictive, suggestive, and generative insights to create data-driven, continuously improving campaigns built on rapid, evidence-based creativity.
Picture yourself in a late-night brainstorm. Usually, you’d call it a day, but now you have an always-on partner: one that can instantly design a campaign, test whether it will work, and suggest how to make it even better. It’s like having the world’s greatest ad designer, behavioral scientist, and strategist on speed dial. That’s the real promise of combining predictive, suggestive, and generative AI.
The headlines love generative AI. Slick ad mockups, witty slogans, and catchy images pop out in seconds. And yes, in a way, it feels magical.
The impact of generative AI on advertising is undeniable and growing rapidly. The global AI in marketing market, which includes generative AI, is projected to surge from an estimated USD 20.44 billion in 2024 to USD 82.23 billion by 2030, demonstrating a robust compound annual growth rate (CAGR) of 25.0% from 2025 to 2030. Specifically, the generative AI in the advertising market is expected to jump from $2.72 billion in 2024 to $8.1 billion by 2029, with a CAGR of 24.4%. This expansion is driven by factors such as integrating AI with augmented and virtual reality in ads, increasing use in optimizing cross-channel marketing strategies, and significant investments in AI research and development by leading tech companies.
But looks can deceive. A polished GenAI spot can feel emotionally flat, oddly uncanny, or even trigger backlash when it hits real people. Consider Coca‑Cola’s 2024 AI‑generated Christmas reboot of “Holidays Are Coming.” It achieved massive visibility, yet the audience reaction ranged from mixed to negative. Viewers called it soulless, uncanny, even dystopian. Commentators pointed out visual oddities and a lack of warmth. Coke later stressed that humans were involved, but the public takeaway was simple: the ad felt less human. This is impactful as a lesson in how brand memory is built on emotion and authenticity, not just visual polish. And it told a clear story: ads made with generative AI can fail horribly.

Creative Bloq, a website providing “daily inspiration for creative people,” documented five high‑profile AI ad misfires in 2025 across big names like Volvo, Vogue, Skechers, and Toys “R” Us. The pattern was similar: strong novelty at first glance, then a wave of consumer pushback around authenticity, quality glitches, or brand fit.
This may ring a bell for those who have dabbled in the space of neuromarketing: here, we have long and often found a difference between attention and engagement. You can capture the eye momentarily, but you lose the plot if the brain tags it as inauthentic. Even worse, even a subconscious response that something is “off” can lead to an Uncanny Valley response. This type of response is characterized by an uncomfortable feeling of unease, or revulsion, that people experience when they see something that is almost, but not quite, human-like, such as a robot, CGI character, or doll If anything, the Uncanny Valley response leads people to not only look away but also create negative associations to anything that is presented at the same time, such as a brand.
What the research says lines up with this story. Nielsen IQ’s late‑2024 report found that AI‑generated ads were more often labeled as annoying, boring, or confusing, and they were less memorable than conventional ads. An eMarketer poll in early 2025 reported that roughly two‑thirds of adults felt uncomfortable with AI‑generated ads. Academic work has also flagged trust and manipulation concerns when AI inserts ads into conversational contexts; once people recognize the tactic, trust and perceived integrity drop.
In short, the hype needs a governor, and that governor is predictive rigor and human judgment. Fortunately, a whole suite of AI solutions are now available that do just that, offering a powerful counter-narrative to the GenAI misfires.
To truly harness the power of AI in research and insights, we need to move beyond the singular focus on generative AI and embrace a collaborative approach. Instead, imagine a dynamic trio working in concert: Predictive AI as an astute analyst, Suggestive AI as an insightful coach, and Generative AI as a rapid creator.

Predictive AI have typically been used to train on eye-tracking data, and then successfully predict where people will look just from the image or video itself. Later models have been able to predict other types of responses, such as engagement, comprehension, trust, and ad/brand memory.

A Suggestive AI in creative design is an AI that can look at your asset, understand scores from test results, and bring together the best in class recommendations for how to improve the asset.

A Generative AI can take the recommendations from the Suggestive AI and implement them into new asset designs. Since this process usually takes only seconds to minutes, it can be done iteratively to boost asset performance during the campaign planning and design process.
When the three AIs work together, something remarkable happens. You get a continuous loop: generate, predict, suggest, and regenerate. Each cycle produces sharper results, each iteration stronger than the last. Here’s how it can look:
In our lab, we have recently observed that 75% of creative variants improve at least 11% in performance after just one iteration. That means if you start with several generated options, pick one of the stronger ones, and refine it again, you can move the needle meaningfully in a matter of minutes, not hours or days.
Adjacent research underscores the power of such adaptive testing. For example, JD.com’s human-based Comparison Lift system (using bandit experimentation) reported 46% uplift in click-through rates across its test campaigns.
To illustrate the tangible impact of this integrated AI approach, let's look at how it is being applied in various industries, where they are delivering measurable improvements and demonstrating the power of combining these AI capabilities.
In one of the largest field deployments so far, Facebook researchers tested a reinforcement-trained generative model called AdLlama on ad text. Over 10 weeks, across ~35,000 advertisers, 640,000 ad variants, and billions of impressions, the system achieved a 6.7% higher click-through rate than a strong baseline. The study shows that when generative output is combined with predictive feedback signals, the result is not just novelty but measurable lift in a hard business KPI.
A large-scale SSRN study analyzed 16 billion impressions and 116 million clicks across over 2 million ad-days. The findings were striking: AI-generated images outperformed human-made ones in CTR, but only when they didn’t look “obviously AI.” When telltale cues like odd proportions or oversaturation appeared, performance dropped sharply. The takeaway is clear: generative output can work better than human creatives, but only if it passes the authenticity test.
Quirks Media reported results from applying predictive AI models to hundreds of ads. Cognitive-processing metrics such as “cognitive demand” and “focus” were tested against in-market outcomes. The result: these predictive scores significantly influenced breakthrough ability and brand recall. In other words, predictive AI isn’t just an academic exercise; it can forecast which ads will land, before they hit the market.
As mentioned, NielsenIQ’s 2024 research offers a warning. When consumers were exposed to AI-generated ads, they often described them as “annoying” or “boring.” More importantly, neuro-based measures showed these ads triggered weaker memory activation than conventional ads. This means that they might grab a click but fail to lodge in long-term brand memory. It’s a reminder that predictive and suggestive layers are essential: without them, generative AI may optimize for surface attention at the expense of deeper persuasion.
This playbook outlines a dynamic, iterative approach to campaign planning, leveraging the combined power of AI tools to transform your creative process and drive superior results. By embracing this methodology, you can elevate your team's efficiency, precision, and impact, ensuring every campaign resonates deeply with your audience.
From this quick round, it is clear that generative AI is in dire need of relevant feedback from predictions and insights. It’s kind of strange, but this suggests that generative AI needs more relevant data as input.
This should be solved mainly by the predictive AI solution, as its KPIs should be based on what you value the most. Below are a few ideas for what you should expect to measure success on.
The operational win is that you come to market with creative that already carries a higher prior probability of success. Speed without signal is theater. Speed with signal is strategy.
The opportunities are thrilling. With this trio of AIs, you can test and refine campaigns before they ever hit the market. Smaller insights teams suddenly have access to expertise that once required Fortune 500 budgets. Speed and precision become everyday expectations rather than occasional luxuries.
But it’s not without risks. If we blindly trust AI outputs, we risk launching shiny failures. If everyone leans too heavily on the same systems, campaigns could begin to look and feel eerily similar. And if human oversight slips, the nuance of culture, empathy, and ethics will be lost in translation.
Having run research labs and companies for a couple of decades, I can confidently say that AI works best when treated as an assistant, not an oracle. Like a bright but inexperienced employee, it needs guidance, review, and sometimes a push to improve.
You have probably hear this statement almost too many times, but it still holds true: the shift to adopting AI is less likely about replacing people, and more about augmenting and empowering them. With these tools, insights professionals can spend less time chasing data and more time asking the questions that only humans can pose. The questions of meaning, culture, and strategy. This future of insights isn’t just about dazzling visuals or clever slogans churned out by GenAI. It’s also about harnessing predictive, suggestive, and generative AI as a team.
I’ll leave you with a metaphor: think of this AI trio solution as your own 24/7 council of experts, ready to help you imagine, test, and refine. That’s not a dream for tomorrow. It’s here now, and those who embrace it will shape the next era of research.
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The views, opinions, data, and methodologies expressed above are those of the contributor(s) and do not necessarily reflect or represent the official policies, positions, or beliefs of Greenbook.
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