Libr-AI/OpenFactVerification

Health v2 · maintenance only

Adoption not part of the score

1153 stars · 64 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Loki is an open-source Python tool that automates fact verification by decomposing texts into claims, retrieving evidence via search, and using LLMs to assess factuality. It supports text, speech, image, and video inputs and can be used as a library, CLI, or web app.

Use cases

• verify factual claims in a text automatically
• detect hallucinations in LLM outputs
• fact-check articles as a journalist
• check factuality of speech or video content
• decompose long text into verifiable claims
• retrieve evidence from the web for claims

When to choose

• you need automated fact-checking with an evidence retrieval pipeline
• you want a Python library or API to verify claims programmatically
• you need multimodal fact verification including speech, image, and video

When to avoid

• you need a human-curated fact-checking database rather than automated verification
• you cannot provide LLM and search API keys
• you need fully offline fact-checking without web evidence retrieval

Facets

library · maturity active

nlp machine-learning llm-inference web-scraping search-engine rag artificial-intelligence large-language-models python cli fact-checking factuality hallucination-detection claim-verification misinformation multimodal evidence-retrieval natural-language-processing search web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="Libr-AI/OpenFactVerification")