Epsilon

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Epsilon: AI-powered scientific search engine. Get factual, cited answers from 200M+ papers in minutes, not days. For researchers.0
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What is Epsilon?

Epsilon is the advanced AI search engine engineered to solve the bottleneck of scientific literature review. Designed for researchers, academics, and students, Epsilon scans over 200 million papers to deliver factual, synthesized answers complete with inline citations, effectively reducing multi-day research efforts to mere minutes. By combining powerful AI synthesis with academic rigor, Epsilon ensures you find evidence, validate claims, and master new topics faster than ever before.

Key Features

Epsilon transforms the research workflow by offering four integrated, powerful capabilities that move beyond simple keyword searching.

🔬 Factual, Cited Answers (Investigate): Ask complex research questions and receive synthesized, trustworthy answers drawn from over 200 million academic papers sourced from platforms like PubMed and arXiv. Epsilon generates a coherent summary using GPT-4, but critically includes inline references to the underlying source material. This feature ensures immediate verifiability and academic rigor, offering a trusted alternative to generalized AI tools for scientific inquiry.

📑 Structured Publication and Patent Search: Beyond simple keyword matching, Epsilon groups search results into highly useful categories like "latest research," "key texts," and "most relevant articles." This structure helps you quickly identify foundational work and current developments, streamlining literature discovery for both academic publications and relevant patents. You can easily save public PDF documents directly to your library.

🔍 Multi-Paper Information Extraction (Validate): Expedite meta-analyses and evidence evaluation by having Epsilon scan the top search results simultaneously. Enter a claim or question, and Epsilon automatically extracts relevant data points from each document. This capability is essential for confirming hypotheses, finding specific citations, or conducting rapid evidence reviews across multiple sources.

📚 Personalized Research Synthesis (Synthesize): Upload your own papers or save public documents to create custom, organized research libraries. Epsilon automatically provides a comprehensive summary of the introduction, results, and conclusion for uploaded papers. Crucially, you can run powerful, full-text searches across your entire trusted collection, facilitating deep synthesis of results across papers you have personally vetted.

Use Cases

Epsilon is utilized by thousands of researchers across the globe to drive efficiency and quality throughout the entire research lifecycle, from initial concept to final publication.

  1. Rapid Literature Review and Grant Writing: Instead of manually sifting through hundreds of abstracts, you can pose specific questions about a topic’s current state. Epsilon instantly synthesizes the existing evidence, providing a cited summary that serves as a robust foundation for drafting grant proposals, research introductions, and literature review sections—saving you dozens of hours per project.

  2. Validating Claims and Conducting Meta-Analyses: When evaluating a new hypothesis or confirming the prevalence of an effect, use the Validate feature to check a claim against the top 100 related papers instantly. This accelerates the process of finding supporting or contradictory evidence, allowing you to move quickly from initial data gathering to statistical analysis.

  3. Onboarding and Topic Mastery: Quickly bring new team members up to speed or master an unfamiliar interdisciplinary topic. By asking broad or foundational questions, Epsilon delivers a cited overview of the current scientific consensus and key mechanisms, enabling rapid knowledge acquisition without the need to read dozens of introductory papers manually.

Why Choose Epsilon?

Epsilon is built specifically for the demands of academic and professional research, providing critical advantages over general search tools or basic AI interfaces.

  • Verifiable Factuality: Unlike general large language models, Epsilon is engineered to prevent hallucination by grounding every answer in the scientific literature. The mandatory inclusion of inline citations ensures that every piece of information is traceable back to a source within the 200+ million paper dataset.
  • Unmatched Scale and Scope: Leveraging the Semantic Scholar dataset, Epsilon offers access to over 200 million papers, including key content from major scientific databases, providing a comprehensive and continually updated view of global research.
  • Time Savings and Efficiency: Epsilon’s core value is its ability to compress the research time commitment significantly—often turning a 20-hour task into a 20-minute review. This efficiency allows researchers to spend more time on analysis, experimentation, and writing, and less time on manual searching.

Conclusion

Epsilon provides the speed and synthesis of cutting-edge AI, combined with the academic rigor and verifiability that scientific research demands. Trusted by over 30,000 researchers, Epsilon is the essential tool for accelerating evidence gathering, project execution, and publication drafting.


More information on Epsilon

Launched
2023-07
Pricing Model
Freemium
Starting Price
$4.08 per month
Global Rank
2285516
Follow
Month Visit
10.3K
Tech used
Google Analytics,Google Tag Manager,cdnjs,Google Fonts,Next.js,Vercel,Emotion,Gzip,OpenGraph,Webpack,HSTS

Top 5 Countries

45.2%
13.13%
9.47%
4.49%
4.16%
United States Vietnam India Germany Morocco

Traffic Sources

5.7%
0.74%
0.11%
8.21%
42.12%
42.98%
social paidReferrals mail referrals search direct
Source: Similarweb (Sep 24, 2025)
Epsilon was manually vetted by our editorial team and was first featured on 2023-11-06.
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