FactCheck

Automated factuality verification for generated text

FactCheck project screenshot

FactCheck is a library for automated factuality verification of generated text. It uses retrieval-augmented approaches to decompose claims, retrieve relevant evidence from knowledge bases and the web, and produce fine-grained factuality scores. FactCheck can be used as a standalone tool or integrated into generation pipelines as a post-processing step.

features

  • Automatic claim decomposition from long-form text
  • Multi-source evidence retrieval (Wikipedia, web, knowledge graphs)
  • Fine-grained factuality scoring per claim and per document
  • Integration with popular generation frameworks (vLLM, HuggingFace)
  • FactBench evaluation benchmark included

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