27,000+
tests run across ASIF portfolio
1,000+
verification rules
5
AI providers supported
< 3s
average verification time
Try It Yourself
See how Faultline verifies claims across different providers.
How It Works
Three steps. Auditable proof.
Step 1
Paste
Drop any AI claim. From ChatGPT, Claude, Gemini, or your own models.
Step 2
Verify
Faultline checks against live web sources, cross-references citations, and scores confidence.
Step 3
Report
Get an auditable verification report with claim graphs, confidence scores, and source citations.
npm install -g @nxtg-ai/faultline
Schedule a Demo
See Faultline in action
Get a live walkthrough of AI claim verification, compliance reports, and multi-provider architecture.
Join 10K+ claims verified
Simple, Transparent Pricing
Start free. Scale when you need to.
Provider Architecture
Gemini · OpenAI · Claude · Perplexity · Mock
Gemini
Google DeepMind grounding
OpenAI
GPT-4o & reasoning models
Claude
Anthropic long-context analysis
New
Perplexity
Live web search · real-time citations
Mock
Offline CI & testing
Comparisons
See How Faultline Compares
Detailed feature-by-feature comparisons with popular alternatives.
Most Compared
Faultline vs PromptFoo
- •Claim-level forensics
- •EU AI Act compliance
- •Real-time web verification
Faultline vs DeepEval
- •Factual claim verification
- •1,000+ verification rules
- •5 AI providers
Faultline vs Manual Review
- •<3 second scan time
- •$19/mo vs $50-100/hr
- •Unlimited concurrent verifications