Try It Yourself
See how Faultline verifies claims across different providers.
How It Works
Three steps. Auditable proof.
Paste
Drop any AI claim. From ChatGPT, Claude, Gemini, or your own models.
Verify
Faultline checks against live web sources, cross-references citations, and scores confidence.
Report
Get an auditable verification report with claim graphs, confidence scores, and source citations.
Zero friction
Try it now — no account needed
Paste any AI-generated text. Get a full verification report in seconds. Real results, not a sales demo.
Simple, Transparent Pricing
Start free. Scale when you need to.
Multi-Model Verification Pipeline
The best model for each stage — 40-60% cost savings vs single-model baselines
Extract Claims
GPT-5.4 Nano
Fast JSON-adherent claim extraction at 193 TPS
~$0.002/scan
Verify Claims
Gemini 3 Flash
Google Search grounding for live web verification
~$0.008/claim
Synthesize Report
Claude Sonnet 4.6
EU AI Act compliance reports and deep critique
~$0.10/scan
Comparisons
See How Faultline Compares
Detailed feature-by-feature comparisons with popular alternatives.
Faultline vs PromptFoo
- •Claim-level forensics
- •EU AI Act compliance
- •Real-time web verification
Faultline vs DeepEval
- •Factual claim verification
- •1,000+ verification rules
- •Multi-model pipeline
Faultline vs Manual Review
- •<3 second scan time
- •$19/mo vs $50-100/hr
- •Unlimited concurrent verifications