scite.ai vs Casper AI (formerly ExplainThis.AI)

Scite helps research teams ask literature questions and get answers tied to full-text papers, not abstract snippets alone. Its Assistant searches across 280M+ full-text scholarly articles, and Smart Citations show whether later work supported, contradicted, or mentioned a finding.

General research chatbots guess when paywalls block the PDF. Scite licenses content from Wiley, SAGE, and 40+ other publishers, so it reads inside the paper and links each claim to a specific sentence you can verify in one click. That evidence-first design targets literature reviews where you need to know if a result still holds, not just that it exists.

Grad students run disputed-or-affirmed checks before citing a paper. R&D teams trace grants, clinical trials, and patents in one search. Pro users get API access, 2,500 MCP credits per month, and collections up to 10,000 papers. Scite also plugs into Claude, ChatGPT, and Zotero so answers show up inside existing workflows.

Casper AI is a Chrome extension research assistant that summarizes web pages and PDFs without leaving the tab you are reading. It targets analysts, strategists, policymakers, and business developers who review dense articles, filings, and policy updates daily and need the core points fast.

Browser summarizers like Gimme Summary or Jetwriter focus on quick TL;DR output. Casper AI frames itself around professional reading workflows: it turns long pages into short notes you can share with stakeholders, and it is built for roles that track industry news, deals, and regulatory changes rather than casual browsing.

The explainthis.ai domain now redirects to casper.so, and the active product ships through the Chrome Web Store as Casper AI with 10,000+ installs and a 4.4 rating. A related highlight-and-explain extension called ExplainTXT also exists from the same team for on-page text selection.