Epsilon
Epsilon is an AI tool designed to facilitate academic research by providing faster access to relevant information and generating summaries ...
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What is Epsilon?
Epsilon is an AI search engine designed specifically for scientific research that cuts twenty hours of research down to just twenty minutes. It scans through more than 200 million academic papers from Semantic Scholar's dataset (including PubMed, arXiv, Papers With Code) to find evidence relevant to any research question you ask. The tool provides ChatGPT-like answers with inline citations to the underlying peer-reviewed academic literature, making it factual and trustworthy for research purposes.
Key features include: Get Answers With Citations that summarize relevant passages from top papers; Search For Publications and Patents that groups results into latest research, key texts, and most relevant articles; Validate by extracting information from multiple papers at once for meta-analyses or claim verification; and Synthesize by uploading papers to get comprehensive summaries, creating libraries to organize research, and searching across your entire paper library. Users can open papers directly or save publicly available PDFs to their library.
Epsilon is built for research scientists in industry or academia, including those writing grants, running literature reviews, conducting meta-analyses, evaluating research questions, drafting proposals, executing projects, writing papers, searching for patents, onboarding team members, and learning new topics. It has been trusted by over 30,000 researchers from institutions across the world. The tool simplifies repetitive workflows for scientists so they can focus on producing groundbreaking research.
Epsilon pricing
Pricing model: Freemium
The website does not display specific pricing details. Epsilon was available for researchers to try out with a free tier implied by the 'Get Started' call-to-action. No paid plan pricing information is visible on the homepage.
Epsilon pros
- Scans 200+ million academic papers instantly
- Provides inline citations to peer-reviewed literature
- Reduces research time from 20 hours to 20 minutes
- GPT-4 powered summaries of scientific information
- Groups search results by latest research, key texts, and relevant articles
- Extracts information from multiple papers simultaneously
- Upload papers for comprehensive summaries
- Create and organize paper libraries
- Search across entire paper library
- Direct access to open papers
- Save publicly available PDFs to library
- Search for publications and patents in one place
- Ideal for meta-analyses and literature reviews
- Trusted by 30,000+ researchers worldwide
- Uses Semantic Scholar dataset including PubMed and arXiv
Epsilon cons
- Shut down on April 30, 2026 - no longer operational
- Queries sent to third-party infrastructure like OpenAI
- Only searches top 100 related papers per query
- Requires account to use the tool
- PDF saving only works for publicly available papers
- May lack very recent papers not in Semantic Scholar
- Dependent on GPT-4 for answer generation
- Limited to academic and patent content only
Frequently asked questions about Epsilon
What is Epsilon?
Epsilon is an AI search engine for scientific research that gives instant answers to research questions using references to academic literature. It scans through more than 200 million papers to find evidence relevant to your question and provides ChatGPT-like answers with inline citations to the underlying source content.
How does Epsilon work?
For each search query, Epsilon finds the top 100 related papers from its dataset of 200+ million academic papers and passes them along with your query to GPT-4 to generate a summary of the scientific information. It uses citations to academic literature making it factual and trustworthy.
What dataset does Epsilon use?
Epsilon uses a dataset provided by Semantic Scholar, which contains over 200 million academic papers including ones from PubMed, arXiv, Papers With Code, and more.
Who is Epsilon for?
Epsilon is built for research scientists in industry or academia. Researchers use it for searching for evidence, finding citations, writing grants, running literature reviews, conducting meta-analyses, evaluating research questions, drafting proposals, executing projects, writing papers, searching for patents, onboarding team members, and learning new topics.
Can I save papers to my library?
Yes, you can open papers directly or if a PDF is publicly available, save it to your library. You can also create libraries to organize your research and save papers there.
How is Epsilon different from ChatGPT?
ChatGPT and other general purpose LLMs don't use the most up to date information, can't provide citations to relevant peer-reviewed literature, and struggle to give detailed and comprehensive answers necessary for research. Epsilon specifically uses academic literature with citations.
How is Epsilon different from Google Scholar?
Academic search tools like Google Scholar leave researchers with hours of paper reading to find the one single nugget that suits their specific use case. Epsilon cuts twenty hours of research down to just twenty minutes by providing summarized answers with citations.
Can I search across my uploaded papers?
Yes, you can run searches across your entire library to synthesize results across papers you trust. Epsilon will provide comprehensive summaries and help you find information across all your uploaded papers.
Is my data private on Epsilon?
Epsilon passes search queries to third party infrastructure providers like OpenAI. However, none of this data can be traced back to you individually. The same is true for the papers that you add to your library.
Can I use Epsilon for meta-analyses?
Yes, Epsilon is great for evaluating and running meta-analyses. You can enter any question or claim and Epsilon will scan through the top search results automatically and extract relevant information from each document, making it ideal for finding citations or searching for evidence of a claim.