Researchers Studied 7,822 Comments on a Coca-Cola AI Ad to Find Out What Actually Triggers Backlash. It’s Not What Most Brands Assume

A study published in the Journal of Business Research analyzed 7,822 YouTube and Reddit comments on Coca-Cola’s AI-generated remake of its Holidays Are Coming campaign to understand why some AI ads trigger backlash and others don’t. The research built what it calls the CPS framework, and its central finding is that backlash emerges not only from perceived inferiority to human-made work, but from what the use of generative AI signals to consumers about a brand’s values and intentions, including attributions like corporate greed. In plain terms, viewers aren’t only judging whether the ad looks good, they’re reading the decision to use AI as a statement about whether the brand cares about craft, workers, and honesty with its audience. That tracks with the pattern across other documented cases: brands that disclosed AI use plainly and framed it as a deliberate creative choice tended to fare better than brands that quietly used AI and got caught, or that leaned on AI in categories tied to nostalgia, representation, or identity, where authenticity matters most to the audience.

For brands and the studios that work with them, this is a genuinely practical risk filter to apply before a campaign goes out, not after. Three questions are worth asking for any AI-assisted campaign: does this category carry emotional weight where audiences expect human authorship, such as holiday nostalgia or identity-driven storytelling, is the AI use being disclosed honestly rather than framed vaguely, and does the final output look cared for, with visible human direction and editing, rather than like an unexamined first draft. Performance advertising, where audiences judge ads mainly on utility, has shown far less resistance to AI-generated creative than emotionally loaded brand moments have. The safest path isn’t avoiding AI, it’s being transparent about how it was used and making sure the finished work carries clear evidence of human creative judgment, which is precisely the kind of process a human-plus-AI studio is built to deliver and should be saying out loud in every client pitch.