Harry Guinness has been covering AI and security (separately and together) for well over a decade. He's a writer and photographer from Dublin, Ireland whose writing has appeared in the The New York Times, Wired, Popular Science, and Inc. His photos have been published on hundreds of sites—mostly without his permission.
Harry Guinness
Harry's articles
By Harry Guinness
•
19 min read
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More from Harry
App tips
OpenAI models: Every model (including GPT-5.6) 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.
By Harry Guinness
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12 min read
Best apps
The 9 best email apps to manage your inbox in 2026
Email is, in many ways, the hub of modern life. Finding the best email app for your needs is key to a having a more manageable and productive digital experience, whether you're communicating with friends or restoring forgotten passwords.
By Harry Guinness
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17 min read
Business tips
What is a token in AI?
Tokens in AI are the fundamental unit of text in modern AI models. Here's everything you need to know about how it works. Plus, how to use your AI tokens wisely.
By Harry Guinness
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6 min read
Best apps
The best large language models (LLMs) in 2026
These are the most significant, interesting, and popular LLMs you can use right now.
By Harry Guinness
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16 min read
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