Currently, there are no reliable AI detectors in existence.
The models output and style changes too rapidly for anything to be used to indicate with any degree of certainty if text is generated by AI or human.
You can try passages from well known books to test this for yourself, with most of Moby-Dick being flagged as AI generated.
It should also be noted that bullet points and em-dashes are NOT reliable indicators of AI generation. Professional and amateur writers, of all kinds, spend a lifetime learning the rules of grammar and appropriate word use. Attempting to call out such text as AI is also highly unreliable.