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.
- enabledTavilyAI-native web search.
- enabledPerplexity SonarCitation-finder.
- enabledWikipediaEvergreen & biographical.
Whitelist
Which AI hosts Fact It should attach to. Default-off on sensitive domains.
- ChatGPT (web)on
- Claude.aion
- Geminioff
- Perplexityoff
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).