I do have experience with artificial intelligence in applications and, more specifically, even things we'd use here - like shape recognition on irregular backgrounds. Even for simple stuff you need sufficient horsepower if you want to recognize not only what you already know but to learn something new. And horsepower does not only mean computational but also fast memory (not "SD card" but rather "RAM" speed).
We are talking about special hardware here. For instance, say you want to be able to distinguish between an ad and a legit image of, say, a wristwatch. Given todays typical image resolutions, this already requires powerful graphics cards if not more specialized hardware (ASICs) so fully share the concern raised by @yubiuser
Companies like TESLA have good reasons for working on specialized AI hardware for their automated driving, etc. The techniques they mention ("computer vision techniques") is just not something you want to perform on normal or, even worse, low-end general-purpose computers.
This really looks like an entirely new concept that would not work well with how Pi-hole is currently working: We are blocking ad requests from known ad providers. What you are suggesting means exactly the contrary: Download all ads, analyze them, and decide if we want to permit or block them. Even when we'd change how Pi-hole works, we still couldn't do it. Sure, a browser plugin "sees" (like, literally) what is on the page and can analyze things, however, your Pi-hole ever sees only DNS requests and has no idea what content is sourced from these pages.
Even if you'd force your traffic through Pi-hole (like in a VPN-style), it wouldn't work because the traffic between your browser and the remote page is encrypted. So Pi-hole would have to work in a man-in-the-middle way: decrypt, analyze and re-encrypt all content that is sent around to get access to it. Even without any AI, this is something that will easily overwhelm your Raspberry Pi on already moderately active networks.
I also don't think what they write on the page is as simple as they pretend. When they say things like
This method is more effective since regulations exist to enforce that advertisements must be clearly labeled. Essentially, the FTC ruled that people must be able to recognize ads.
they neglect the the majority of users with Internet access live outside of the United States. Ads can be in different languages and don't have to be labeled at all as ads in other countries. Also, if they don't have to prove their statements, they can easily say that their product would be the best if it were ever released. I'd be ready to try if it detects ads in other languages than English (and even English ones from other countries like the UK or India), but their plugin doesn't seem to be available anywhere.
Sorry to say this but a lot of products I've seen that had "AI-powered" in their title are bullshit. Maybe the only exception to this are AI-powered image enhancement algorithms used in many cameras today because this is a lot easier to do - you can recognize known scenarios and tweak some settings for that. "AI" is just a very broad buzzword for very different things.
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