It appears this lawsuit is complaining that ChatGPT can write fan fiction and they don't like that.
I was onboard initially thinking we were talking about OpenAI ingesting Game Of Thrones as training material, but it appears George et al are just mad because it can make stories with their characters.
This is far from the authorship/copyright problem of AI.
If you read the claims to relief (start on page 44 of complaint) it's mostly just standard copyright infringement during training. The claims about ChatGPT writing works that infringes their works seem to be to be to try and head-off a fair use defense. One of the tests for fair use is the effect on the potential market for original work.
I was onboard initially thinking we were talking about OpenAI ingesting Game Of Thrones as training material, but it appears George et al are just mad because it can make stories with their characters.
This is far from the authorship/copyright problem of AI.