Reputable and sketchy academic journals alike are publishing AI-generated research papers feature obvious Chat GPT-penned phrases such as "as of my last knowledge update" and "I don't have access to real-time data".
There's nothing new about questionable papers finding their way into seemingly sound academic journals. In 2018, a group of authors published a series of ridiculous articles in order to highlight the sorry state of academic integrity in some fields.
https://www.nytimes.com/2018/10/04/arts/academic-journals-hoax.html
AI–generated content can outpace writers and reviewers, especially if there's enough financial and credential padding to incentivize the rapid creation and publication of hogwash.
https://www.theguardian.com/science/2024/feb/03/the-situation-has-become-appalling-fake-scientific-papers-push-research-credibility-to-crisis-point