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FactFilter

Stop AI Hallucinations in Their Tracks

Verify every claim in your AI-generated content against trusted sources. Prevent misinformation and maintain credibility with real-time fact validation.

Trusted by writers, researchers, and professionals worldwide

Vercel
Raycast
Linear
Mercury

Truth Validation Engine

Our three-step process identifies and corrects LLM hallucinations before they reach your audience

1

Submit AI-Generated Content

Paste any LLM-produced text to identify potential hallucinations and inaccuracies

2

Deep Truth Analysis

Our system cross-references claims against the entire web in real-time

3

Get Verified Insights

Receive line-by-line accuracy ratings with source citations and correction suggestions

Live Example

"The Eiffel Tower is 324 meters tall." "It was built in 1887."

Verified: The Eiffel Tower is ~324 meters tall.

Needs refinement: Construction began in 1887 but completed in 1889.

Key Benefits

Experience the power of AI-driven fact-checking that saves time and builds trust.

Eliminate AI Hallucinations

Automatically flag unverified claims before they damage your credibility

Fact-Check at Scale

Process 10,000 words in seconds - perfect for long-form AI content verification

Source-Based Corrections

Get evidence-backed rewriting suggestions for any questionable claims

Trusted by Industry Leaders

See why professionals choose FactFilter for their content verification needs.

Cut our LLM hallucination rate by 92% while maintaining output volume. Essential for any AI content workflow.

S

Sarah Johnson

AI Content Lead at TechDaily

Finally a solution that lets us scale AI content responsibly. The source citations alone are worth it.

M

Michael Chen

Head of AI Operations

Our fact-checking team now focuses on high-value work instead of chasing false claims.

E

Emily Rodriguez

Content Integrity Director

AI Content Guardrails

Get started now with a free trial—no credit card required, no commitments.

Includes plagiarism detection • Source citations • Compliance reporting