Fact It
Settings

Tune Fact It for how you work

Sensitivity

Higher sensitivity means more claims extracted per response and more evidence per claim.

Evidence providers

Sources Fact It queries when verifying each claim. Wikipedia is anonymous and always available.

  • Tavily
    AI-native web search.
    enabled
  • Perplexity Sonar
    Citation-finder.
    enabled
  • Wikipedia
    Evergreen & biographical.
    enabled

Whitelist

Which AI hosts Fact It should attach to. Default-off on sensitive domains.

  • ChatGPT (web)
    on
  • Claude.ai
    on
  • Gemini
    off
  • Perplexity
    off

Models

Fact It uses one tuned, fixed model stack so quality is measured and reproducible across all users.

Extractor
Claude Haiku 4.5
Cheap, fast structured-output extraction.
Verifier
Claude Opus 4.7
Best-in-class RAG faithfulness (4.2% error, May 2026).