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About Defacta
What is Defacta?
Defacta is a verification layer that checks AI-generated answers and any text for factual accuracy, source credibility, bias, and manipulation before they reach your decision. It extracts claims, checks them against sources, and returns a structured report in under 60 seconds, with a verdict that is timestamped and traceable.
What problem does it solve?
AI hallucinations and misinformation are a growing risk when using AI outputs for decisions that matter. Defacta addresses this by providing a structured, four-layer analysis: factual verification, source credibility, bias/manipulation detection, and cross-referencing against fact-checking registries. It doesn't just say true or false; it delivers a traceable verdict.
Who is it for?
Defacta is designed for individuals, professionals (analysts, journalists, editors, researchers, lawyers, financial analysts), and organizations that need to verify content before acting on it. It's ideal for anyone who uses AI answers for health, finance, or other critical decisions, and for organizations that need documented compliance with EU AI Act articles. It is not for those seeking a simple binary fact-checker without structured analysis.
Real use cases
Use Defacta to verify an AI answer about a medical condition, cross-check a news article before sharing it, confirm that citations in a report actually support the claims, or ensure your organization's AI-generated content is liability-free and compliant. With API and MCP server coming soon, it will integrate seamlessly into workflows.
Key features
- Factual verification — Claims are checked against credible sources and authoritative databases; hallucinations and fabricated citations are flagged.
- Source credibility — Every source is evaluated for reliability and relevance; anonymous or low-credibility sources are identified.
- Bias and manipulation detection — Manipulative framing, selective omission, and persuasion tactics are detected and scored.
- Misinformation registry — Cross-references against fact-checking registries and known misinformation databases.
- Structured reports — Get a one-pass, structured credibility assessment with a timestamped verdict.
- Free tier for individuals — 5 checks per day with no technical background required.
SaaSpartout Score
7.1
/10
Editorial score from our review methodology — not user ratings.
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Defacta Pricing
Defacta pricing: Free (5 checks/day). Billing model: Free.
For comparison: the median starting price in AI Other is $19/month, measured across 206 tools we track. See the full SaaS Pricing Index →
Free Plan
Price: $0
Includes: 5 checks per day, access to the console, and structured reports for individuals.
Professional and Organization Plans
Pricing not publicly listed yet. Contact for early access. The console is available for testing; API and MCP server integration are coming soon.
Try Defacta free with 5 checks per day — no credit card required.
Frequently asked questions
How much does Defacta cost?
Defacta is free for individuals with 5 checks per day. Professional and organization plans are not yet publicly priced; you can request early access.
What is Defacta?
Defacta is an AI hallucination detection and fact verification tool that checks AI-generated text or any content for factual accuracy, source credibility, bias, and manipulation.
How does Defacta work?
Defacta runs your input through four layers: factual verification, source credibility analysis, bias/manipulation detection, and cross-referencing against misinformation registries. It returns a structured report with a timestamped verdict.
Who is Defacta best for?
Defacta is best for individuals, professionals (journalists, researchers, lawyers), and organizations that need to verify AI-generated content for accuracy and compliance.
What are alternatives to Defacta?
Alternatives include other fact-checking and AI verification tools, but Defacta stands out with its structured four-layer analysis and EU AI Act compliance mapping.
Is Defacta a free tool?
Yes, Defacta offers a free plan with 5 checks per day. Paid plans for professionals and organizations are in development.
