PubMed.ai
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IntroductionPubMed.ai calls itself "...a literature search engine powered by artificial intelligence, but based on scientific research". This remains to be seen, though it does appear to be in part true given a number of test searches. Put another way, PubMed.ai uses large language models (LLMs) and specialized search technologies to present the most relevant and recent papers related to queries. The goal is "to speed up the process of finding literature on PubMed.gov, allowing researchers to spend more time on actual research". All content is linked to real research papers. "We support multilingual input, but the output is in English."
Bottom line: For health sciences librarians, PubMed.ai might support their work with health professionals but its underlying AI raises concerns for those interested in scientific accuracy, transparency and rigour in reviews. Note information provided to you on this page is changing, so check the tool's website for the current information (or discuss with a librarian). Incidentally, I like to make a distinction between searching for sources and searching for answers. This much is true: LLMs provide the second while hiding the first. PubMedAI Search MechanicsWhen you enter a query or phrase (such as “Mitochondrial dysfunction analysis”), we run a custom, fine-tuned language model. This model removes words like “what,” “is,” and “are” from the query, then transforms it into MeSH terms and a combination of specific keywords. Based on this, we extract the 20 most recent studies from the PubMed database for analysis, creating a Result Summary and AI Research Co-Pilot (assuming there are more than 20 relevant papers; if fewer than 20, all available papers are analyzed). This allows us to intelligently assess the relevance of research papers to your query. CaveatPubMed.ai looks like it might be created by the National Library of Medicine (NLM). It aims to enhance biomedical research by providing evidence-based "insights" into papers, and by connecting answers to the peer-reviewed research, as indexed in PubMed (MEDLINE). It uses large language models (LLMs) and reasoning to transform user queries into MeSH (Medical Subject Headings) "allegedly" for improved literature retrieval, offering features like summarized articles, research overviews, and data visualization. It says it is "powered" by the official PubMed database, and 40 million papers across medicine, biology, public health, and life sciences, updated daily. Is PubMed.ai an NLM venture?PubMed.aidoes not seem to be directly developed or maintained by NLM but leverages the PubMed (Medline) database, which is created and maintained by the NLM’s National Center for Biotechnology Information (NCBI). There is no explicit indication in the provided information that NLM endorses or is directly involved with PubMed.ai. A post from me on X on July 21, 2025 questioned whether NLM is behind PubMed.ai, noting a lack of transparency about its creators, and another post confirmed it is not affiliated with NLM. Thus, while PubMed.ai relies on NLM’s PubMed data, it appears to be an independent tool, and users are advised to consult medical librarians for clarity on its legitimacy and functionality. Librarian criticismPubMed.ai seems to mimic NLM's PubMed.gov. It's unclear from the "About" pages who is behind PubMed.ai, which is a major problem in terms of transparency. Clearly, HSLs need to test and evaluate its claims, and determine its value beyond trying it out to locate a few papers. It's unclear how many searchers find PubMed.ai and use it thinking they are at the actual PubMed website. Further, I cannot locate any academic papers that explicitly mention PubMed.aiThe platform appears to be a specialized AI tool for biomedical literature searches, but its absence in peer-reviewed literature suggests it is very new or has not been widely advertised. Researchers interested in PubMed.ai might find relevant insights in studies of similar AI tools, or to test it for themselves. My advice is to use NLM's PubMed to perform searches in support of knowledge synthesis (KS) - not to avoid PubMed.ai but just to know that it is not bona fide PubMed at NLM. PresentationReferences
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