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FactScope

Web Application

Grammarly, but for factual accuracy. Verifies content instantly, identifies inaccuracies, suggests corrections backed by web sources. Free and open source.

Next.js
TypeScript
Claude
FactScope

Key Features

  • Real-time fact verification of LLM-generated content
  • Source-backed verification with Exa.ai
  • Detailed explanations for identified inaccuracies
  • Suggestion-based corrections
  • Built with Next.js App Router and TailwindCSS
  • Powered by Claude 3.5 Sonnet (supports other LLMs)
  • Vercel AI SDK integration

FactScope (Hallucinations Detector) is a free and open-source tool. It helps you verify content accuracy instantly. It is like Grammarly, but for factual accuracy instead of grammar. It analyzes content and identifies possible inaccuracies. Then it suggests corrections backed by reliable web sources.

How It Works

  1. Claim Extraction: Uses Claude 3.5 Sonnet to divide the text into individual claims
  2. Source Verification: Verifies each claim with the Exa search tool
  3. Accuracy Analysis: Analyzes the claims and sources for accuracy
  4. Results Display: Shows the results clearly, with suggestions for fixes

Tech Stack

  • Search Engine: Exa.ai for advanced web search
  • Frontend: Next.js with App Router, TailwindCSS, TypeScript
  • LLM: Claude 3.5 Sonnet (compatible with GPT, Gemini, Llama)
  • AI Integration: Vercel AI SDK
  • Hosting: Vercel