Epsilon

Epsilon is an AI-powered search engine designed for scientific research. It helps researchers quickly find answers to research questions by scanning over 200 million academic papers and patents, providing summarized answers with inline citations. Key features include: Investigate – ask questions and get cited answers; Search – find publications and patents grouped by relevance; Validate – extract information from multiple papers simultaneously; Synthesize – upload papers for summarization, create libraries, and search across them. Epsilon is used by over 30,000 researchers for tasks such as literature reviews, meta-analyses, grant writing, and more. It leverages the Semantic Scholar dataset and GPT-4 for generating summaries. Note: Epsilon will shut down on April 30, 2026.