Is AI Making Your Brand Voice Sound Like Everyone Else's?

Spend a few minutes scrolling LinkedIn, and a pattern starts to show. A one-line hook opens the post. A short, punchy sentence follows on its own line. A list of ideas comes next, then a closing question inviting readers to share their thoughts.

Any one of these choices is reasonable. The trouble is how often they now appear together, across industries and companies that have little else in common. Remove the logo from many business posts, and it would be hard to say who wrote them.

Why it's happening

AI writing tools learn from enormous amounts of existing text, and they tend to favor familiar phrasing and structures. That's part of what makes them useful. A rough draft comes back polished and well organized. It also means drafts from different businesses drift toward the same place.

Research has started to document this. In a study published in Science Advances, writers who drew on AI-generated ideas produced stories that evaluators rated as better written, but those stories were more similar to one another than stories written without AI. Marketers are noticing a version of this in their own work. In a 2026 survey by the content marketing agency Fractl, 48% of marketers said AI makes their work faster but more average.

Neither finding is a reason to stop using AI. Both suggest the tool will pull toward the middle unless someone deliberately pulls back.

Why brand voice matters more now

A consistent brand voice is part of how people recognize a business and come to trust it over time. For firms that sell expertise, like consultants, accountants, and advisors, a post is often a prospect's first sample of how the business thinks. If that sample could have come from anyone, it builds familiarity for no one in particular.

Audiences are paying attention. In the same Fractl research, 40% of consumers said their trust would decrease if a favorite brand used AI for most of its marketing. For any business, that's a good reason to make sure its content still reflects real people and real expertise.

Patterns worth watching for

• The same opening moves. Phrases like "Let's be honest" or "Here's the thing," or a single dramatic line set apart from the rest of the post.

• Contrast by default. Sentences built as "It's not about X. It's about Y." Used deliberately, contrast can sharpen a point. Used in every post, it becomes a verbal habit readers learn to skim past.

• Everything in threes. Three adjectives, three benefits, three takeaways. Real ideas rarely arrive in such tidy sets.

• Endings that summarize. A final line that restates the post instead of adding a thought, a question, or a next step.

• Vocabulary from nowhere in particular. Words like "unlock," "elevate," "navigate," and "landscape" could describe almost any business, so they tell the reader very little about yours.

How to protect your brand voice

• Write down how you want to sound. A short reference covering tone, words you use, and words you avoid gives both employees and AI tools something to work from. Without it, the default voice fills the gap.

• Add what only you know. A specific observation from your work, the reasoning behind a recommendation, or a detail from your industry that outsiders would miss. AI can shape a sentence, but it can't supply your experience. (Keep client details out, of course.)

• Read drafts out loud. If a sentence sounds like something you'd never say to a client across the table, rewrite it until it does.

• Vary the structure on purpose. Not every post needs a hook, a list, and a question. Some ideas work best as a short observation. Others need a few paragraphs of explanation.

• Decide where AI helps and where a person writes. Outlines, first drafts, and proofreading are natural places for AI support. Apologies, leadership announcements, and sensitive client communication are worth writing from scratch.

A few questions worth asking

• If you removed your logo, could a regular reader still tell a post was yours?

• Does your recent content include anything a competitor couldn't have written?

• Would your team describe your company's voice the same way?

• When was the last time someone read a post aloud before publishing it?

AI can make writing faster and cleaner. The details, opinions, and experience that make it recognizably yours still have to come from the people behind the business.

If your messaging has started to blur, MCDA CCG's Communications & PR team can help you define a voice that's clearly your own.