Gab AI had an update and is still glitchy, so it's only slightly less bad. It still doesn't give good results. Common problems:
* It doesn't understand English instructions but takes elements from the prompt and installs them wherever it feels like.
* It knows some characters but doesn't know others. The characters that it is aware of, it does not draw on model. It draws something close to them but something is always off.
* When there are multiple characters in a scene, it bleeds elements from one into another. It also gets confused and duplicates characters.
* It has a few default/common art styles. You tell it to do something in another art style and it tries to fit it into one of those art styles instead. I've tried to tell it to do Warner Brothers cartoon style, newspaper comic strip, Gary Larson / Far Side, My Little Pony, it doesn't seem to understand. It is vaguely aware of Peanuts and will make an attempt.
* It does not seem possible to train the AI, so you can only hope that it understands you.
It's still interesting to see how it fucks up and wonder about how that happens, so let's show off some AI art failures.
AI Failure #1: I asked for Harry Potter in the style of Ralph Bakshi. It gave me a pretty good Harry Potter image that looks nothing like a Ralph Bakshi cartoon, so it does not know Bakshi's style (Fritz the Cat, the Lord of the Rings cartoon, Wizards).
AI Failure #2: "Clownpiece from Touhou dancing in a grassy field". It does not know Clownpiece as a character, but can draw a generic Touhou in generic clown colors. And the most famous clown is The Joker. So it created The Joker as a 2hu.
AI Failure #3: I wanted to see Wile E. Coyote holding a giant magnet with Iron Man stuck to it. The AI does not know what a giant cartoon magnet is supposed to look like, how someone would hold it, or how someone would be stuck to it. The AI also seems to have its own idea of what Wile E. Coyote should look like, repeating a similar character who I do not recognize as Wile E. Coyote. And for a "reroll" it gave me a really awesome image of a wolf for some reason.
AI Failure #4: The concept is a simple sight gag, Superman mixes his reds and blues in the wash and they come out purple. The AI kept drawing Clark Kent wearing Superman's uniform, and made everything in the image purple except for Superman's uniform. That kept coming out in its perfect blue. The AI refused to recolor it, I'm guessing because it knows what Superman's uniform is supposed to look like and resists changing it.
AI Failure #5: This is supposed to be Commander Keen fighting Marvin the Martian. The AI has no idea what Marvin is supposed to look like and only a vague idea of Commander Keen, and it gave Keen a pair of Martian antennae. It did draw a decent fantasy Martian background.