GPTZero gives it a 100% chance of being AI generated, and I've found that these tools may give false negatives from a well-prompted model, but false positives are rare.
If you are looking to tune your intuition for AI-written text, here's an interesting list of their quirks (ironically provided as a Claude skill for removing those quirks from emitted text):
https://github.com/stephenturner/skill-deslop/blob/main/refe...