FactCheck AI

FactCheck AI

Full Fact's AI-powered automated fact-checking tool for detecting and flagging repeated false claims. Pricing: Free (Open source tools available; Full Fact is a registered charity). See pros, cons, al

Open SourceWritingDeveloper ToolsWeb, API
FactCheck AI screenshot

What is FactCheck AI?

FactCheck AI is Full Fact's automated fact-checking tool designed to identify and flag false claims that circulate repeatedly online. Built by Full Fact, the UK's independent fact-checking organisation, it uses machine learning to detect when claims have already been fact-checked and found to be false, then flags them when they reappear. The tool is available as open-source software and runs on a free model, making it accessible to journalists, researchers, and organisations working to combat misinformation. Because Full Fact is a registered charity rather than a commercial company, the tool prioritises accuracy and public benefit over monetisation.

Key Features

Automated detection of repeated false claims across online sources

Machine learning trained on Full Fact's existing fact-checks

Open-source availability for integration into other platforms and workflows

Flagging system that marks claims already identified as false

Integration with Full Fact's database of verified fact-checks

Pros & Cons

Advantages

  • Completely free to use, with no premium tier or hidden costs
  • Built by an established, independent fact-checking organisation with strong editorial standards
  • Open-source code allows customisation and integration into other tools
  • Focuses on catching recurring misinformation rather than one-off false claims

Limitations

  • Coverage limited to claims previously fact-checked by Full Fact, so emerging or novel false claims may not be flagged
  • Requires technical knowledge to implement the open-source version effectively
  • Primarily trained on UK-focused content and may be less effective for international claims

Use Cases

Newsrooms checking whether claims in stories have been previously debunked

Researchers studying patterns of misinformation and how false claims spread

Social media platforms or content moderation teams flagging repeated false claims

Educational organisations teaching critical thinking and media literacy

Policy advocates needing to track recurring false narratives in public debate