How to Spot AI images (Hopefully)
So, I did see GailyNovelry's excellent post on this (Link here), but saw that there also were some confusion and they were using a environment image as their example, so I thought I'd do a breakdown that was more character centric.
The key thing with AI images is that the program does not know what it is making. And, arguably, they thrive on that we are currently conditioned to not really look at things for too long before we hit that engagement button and/or just scroll onwards to whatever next the algorithm feeds us.
It's hard to fight that urge, I know, but if you just pause and look, you'll soon start spotting things that just do not make sense, and I don't just mean that the pretty booby elven fighter is sporting seven fingers on one hand. Those are the obvious things. I'll try to cover the general sort of artefacts that tend to tip me off to the fact that a image is generated rather than actually hand-made by someone making informed design decisions as opposed to trust what amounts to RNG. I think this is important as there's those who do not tag their images as AI generated, and try to scam people with commissions.
And, as the saying goes... The devil is in the details.
To start with I picked this image from deviantuser CeiEllem. At first glance, it looks... very impressive. Sharp looking elf lady with killer hair. 10/10 wish I could rock that haircolour.
But, it is AI generated. Aside from the general tell that is this hyper rendered, near photorealistic style that AI images often have, there's a lot of details that tips it off to just not having been made by a human who actually made the decisions.
Since AI is just working off patterns and not actual decisions, things like hair is a immediate giveaway that you're looking at a AI image.
(Deviantart users: daralyth, DavidZarn and lunayokai)
In all these three images you can see just how hair whisps off into weird nonsense shapes or even meld into the background or clothing. Because, again, the AI doesn't know what its doing, just working with shapes. Similarly, background elements that just stop and start randomly is a dead giveaway, like the tail in the first image.
As I've said, details is the key to spotting these images, and another giveaway is the sheer density of details that is just noise.
This is from users Rigtorok7, and the details are so noisy, absolutely miniscule in scale, and hypersharp, yet have no actual design to them. Artists imply details all the time. We don't render out every single nook and crevice, and since we actually know what we want the viewer to look at, we'll pull back and simplify things so you don't want to look at the big chunk of very noisy hair ornament or necklace instead of the face of the character.
For comparison, this is how it looks when I, personally, indulge in doing 'overdetailing' of something (because I am forever weak for painting jewelry).
BUT I want to stress that the key here isn't that detailing equals AI generated. The key is the lack of design choices IN the details. There's a lot of artists out there, and someone painting out all those nooks and crannies in something doesn't mean they are a AI user. This painting by Leighton is super detailed but you see the intent with all the details. You have a focus with the people in the boat and secondary read of the figure in the door, where the details are a lot more implied and less sharp.
AI can't do that, because AI isn't making any decisions.
I couldn't find any good example once I went looking, but if you're into fantasy art: look for people just holding weird 'swords'.
AI is rapidly evolving, so who knows how much this'll help in 3 months, but for now, this is how I spot things.
But, in the end, the biggest giveaway that someone is using an AI generator is that they've filled up page after page on deviantart/artstation/wherever in the past like... six to nine months, and often swing between wildly different styles. If you're unsure, look up the source of a image. Another clue can be generic 'untitled' or just 'elf lady' sort of titles, since someone uploading 30 images a week isn't going to make unique titles for each image.
Also, commissioners. ... you should ALWAYS get a sketch and progress image from a artist that you hire. My art directors would have my head on a plate if I didn't send them a rough sketch and progress shot before finalising the image.
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