Harry Guinness is a writer and photographer from Dublin, Ireland. His writing has appeared in the New York Times, Lifehacker, the Irish Examiner, and How-To Geek. His photos have been published on hundreds of sites—mostly without his permission.
Harry Guinness
Harry's articles
By Harry Guinness
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19 min read
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More from Harry
Best apps
The 20+ top AI art generators in 2026
If you want to get in on the text-to-image action but aren't sure where to start, this list will help you out.
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The 6 best to do list apps for Mac in 2026
To do lists don't need to be complicated–some people use pen and paper for the job, after all. And yet there are seemingly infinite to do list apps out there.
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The 5 best password managers in 2026
I spent a few days testing every viable password manager on the market, and here are the five best.
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OpenAI models: Every model (including GPT-5.4) and what it's best for
This is your complete guide to all of OpenAI's major models. We'll look at what each one is good for, how much they cost, and how to make the most of them in your work.
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