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Trust, Verify, and Write: Using Grammarly’s Authorship in the Age of AI

A good first step toward showing that your work is yours alone.

3 min readNov 2, 2025

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A magnifying glass is held over the keyboard of a laptop computer, with the lens focusing on a few keys. The hand holding the magnifying glass is partially visible, but the person’s features are not shown. The scene emphasizes close inspection or searching, with soft lighting and the laptop screen dark.
Photo by Agence Olloweb on Unsplash

While I don’t write exclusively for a living, many aspects of my work in public health involve writing. It consists of writing blog posts, articles, and social media posts. And it involves reading students’ papers, or having written discussions with them on discussion forums through the learning portals we use. Ever since the advent of artificial intelligence (or “Large Language Models”), the race has been on to figure out a way to know if what is written is original work written by a human or work written by a computer trained on gazillions of written documents written by millions of humans.

As it turns out, Grammarly has a neat tool that I’ve been using lately. It’s called Grammarly Authorship, and the idea is simple. When you give it access to your writing platform of choice (in this case, Google Docs), the Grammarly tool will record your writing and create a report of that written product.

For example, I have it running in the background right now, recording every keystroke on my, uh, keyboard. When I finish this blog post, it will have a report of how long it took me to write this, how much of it seems to be AI versus Human, and there is even a feature that I can…

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René F. Najera, MPH, DrPH
René F. Najera, MPH, DrPH

Written by René F. Najera, MPH, DrPH

I write about Love, Life, and Epidemics. Not necessarily in that order. In any case, I’ll inform you. And you’ll like it. Or not.