Firecrawl vs OpenRead

Semantic Scholar is a free, non-commercial academic search engine built by the Allen Institute for AI (Ai2). It indexes more than 240 million papers from every field of science and uses machine learning to extract meaning from abstracts, citations, figures and tables, so researchers find relevant work faster than with keyword-only search.

面向同行评审文献的 AI 学术搜索引擎

用于阅读、理解与撰写科学论文的 AI 科研平台

专项更强拥有庞大的强大网络爬虫与 Actor 市场，但比 Firecrawl 简单的 API 需要更多配置。

Jenni is an AI research and academic writing workspace that helps students, researchers, and academics read, write, and cite in one place. Bring in PDFs or import a Zotero or Mendeley library, and Jenni's autocomplete suggests sentences grounded in your own sources, with every suggestion linked to the exact page and paragraph. A built-in writer, AI chat, citation engine covering 10,000+ styles, and a Reviews tool for catching weak or unverified claims make it a full environment for producing cited papers.

Combines live web search and cloud browsers for agentic automation, but less specialized in clean markdown generation.

针对语义网络搜索和 AI 智能体检索进行了优化，但对整站 Markdown 爬取的专注度稍低。

与任意 PDF、视频或网页对话，几秒内获得带引用的答案

内置深度研究智能体和网页搜索 API，但较少侧重于将原始网站直接转换为 Markdown。

基于 3 亿 + 篇学术全文的 AI 答案

ResearchRabbit is a free AI research discovery tool that maps the literature around the papers you care about. Seed it with a paper you like and it visualises related work, key authors and emerging topics, learning from your choices to surface the research you have been missing.

专项更强具备强大爬虫工具的企业级代理服务器基础设施，但若只是要简单转换 Markdown，复杂度和价格都明显高出许多。