The rise of large language models (LLMs) like ChatGPT offers promising academic opportunities but also raises peer review concerns. Reviewers increasingly use LLMs to refine language or draft reviews, blurring the line between using artificial intelligence (AI) as a supportive tool and a leading role in the peer review of manuscripts. Given the impracticality of enforcing a ban on reviewers' use of LLMs, this obscurity poses challenges for editorial teams in maintaining peer review integrity. Based on the literature and authors' editorial experience, this brief paper examines the challenges of detecting LLM-shaped reviews, highlights key indicators, and offers recommendations to uphold the rigor of peer review—an imperfect system, yet still the best we have in scholarly publishing.
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