The American Association for Cancer Research (AACR) found that 23% of abstracts in manuscripts and 5% of peer-review reports submitted to its journals in 2024 contained text that was probably generated by large language models (LLMs). The publishers also found that less than 25% of authors disclosed their use of AI to prepare manuscripts, despite the publisher mandating disclosure for submission.

To screen manuscripts for signs of AI use, the AACR used an AI tool that was developed by Pangram Labs, based in New York City. The analysis found that AI-generated text in peer-review reports dropped by 50% in late 2023, after the AACR banned peer reviewers from using LLMs. But detections of AI-generated text in peer-review comments more than doubled by early 2024 and continued to climb.

Source https://www.nature.com/articles/d41586-025-02936-6

Another high-profile case has interested scientists. Read now