About Factbutcher

Factbutcher is an AI-powered fact-checking application that helps you verify claims and statements using reliable sources and advanced language models.

How It Works

  1. Submit Text: Enter any text containing factual claims you want to verify
  2. Claim Extraction: Our AI extracts individual factual claims from your text
  3. Verification: Each claim is verified using trusted fact-checking sources
  4. Results: Get clear verdicts with supporting evidence and source links

Technology Stack

  • Backend: FastAPI-based REST API with LLM-powered claim extraction
  • Frontend: Next.js for a fast, multilingual, SEO-friendly interface
  • Verification: Multiple fact-checking tools including:
    • Google Fact Check Tools API
    • Perplexity AI for real-time verification
  • AI Models: OpenAI GPT models for claim extraction and analysis

Verdicts Explained

  • TRUE: The claim is supported by reliable sources and evidence
  • FALSE: The claim contradicts verified information from reliable sources
  • MIXED: The claim is partially true or requires additional context
  • INSUFFICIENT EVIDENCE: Not enough reliable information to verify the claim

Privacy & Data

  • We process the text you submit to extract and verify claims
  • No personal data is stored beyond optional user identifiers for tracking
  • Session data helps improve the service and track usage patterns
  • All API communications use secure authentication

Use Cases

  • News Verification: Check claims in news articles or social media posts
  • Research: Verify facts for academic or professional work
  • Content Creation: Ensure accuracy in your written content
  • Education: Learn critical thinking and fact-checking skills

Limitations

  • Results depend on availability of reliable sources
  • Recent events may not have sufficient verification sources yet
  • Complex or nuanced claims may require human judgment
  • The service provides information to assist your judgment, not replace it

Getting Started

Ready to try it? Head to the Factbutcher home page to start fact-checking!

Questions or Feedback? This is an experimental tool built to demonstrate AI-powered fact-checking capabilities.