If you're looking for another Epsilon, Semantic Scholar is a good choice. It indexes more than 219 million papers across all scientific fields, with a range of search tools and short summaries (TLDRs) to get a quick idea of what's in a paper. The service also offers tools to cite papers, organize papers into folders and create AI-powered research feeds. You can also get paper recommendations based on your interests and set up automated email alerts for new citations.
Another good option is Elicit, an AI research assistant that can help you find, summarize and extract data from more than 125 million academic papers. It's particularly useful for empirical subjects like biomedicine and machine learning, for example speeding up literature reviews and automating systematic reviews. Elicit comes in three versions, including a free Basic tier, so it should be useful for a range of situations.
Scite is also worth a look, especially if you want to see citations in context and check references. The service lets you track insights and manage articles with customizable dashboards, and its database includes more than 1.2 billion citation statements in 187 million articles. Scite is good for researchers and universities that want to make sure their citations are accurate and get more out of big data.
Last, Doclime is a good option if you want to automate as much of the research paper writing as possible. It's got a brainstorming tool, a big search engine and an AI writing assistant that can help with autocomplete and paraphrasing. Doclime is designed to save hours of work by automating the research paper writing process, so it's good for academics who suffer from writer's block and are on a deadline.