Lenz takes a claim — one your product generated, or one you typed — and runs it through a structured pipeline: researched across multiple independent sources, scored for truthfulness, checked for bias, and backed by cited evidence you can audit.
Every claim passes through the same five stages — whether you call it as an API layer in your workflow or test it on a single pasted claim. Each stage ships its evidence, so you can verify the verification.
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Stage 1
Framing
The claim is received and cleaned up. We strip away emotional language and bias, distill the core factual statement, and prepare targeted search queries — so the rest of the process starts from a neutral, testable hypothesis.
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Stage 2
Research
We search the web in parallel across multiple queries and independent search engines, then read the pages themselves. Quotes are extracted from each source's own text. Each piece of evidence is scored for authority, relevance, and recency.
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Stage 3
Debate
We use two separate AI models to argue opposing sides in two rounds. First, one builds the strongest case that the claim is true while the other constructs the most compelling argument against it. Then each reads the opponent’s argument and writes a targeted rebuttal, exposing weak points in reasoning or evidence. Both draw exclusively from the collected evidence, ensuring every angle is stress-tested before the conclusion is reached.
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Stage 4
Panel Review
Three separate AI models — each evaluating a different axis — independently review the evidence and debate arguments. One audits source reliability and independence, another examines whether the evidence logically supports the claim, and a third checks whether the claim's numbers and wording match what the evidence actually supports. Each scores the claim and explains its reasoning.
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Stage 5
Conclusion
All debates and analyses are synthesized into a single clear conclusion — True, Mostly True, Mixed, Mostly False, or False — with a Lenz Score from 1 to 10. A concise summary explains where the reviewers agreed or disagreed, and surfaces any important bias or logic warnings.
Ask follow-ups
Once a verification is complete, you can ask follow-up questions and get
answers grounded in the same evidence — the research brief, debate
arguments, and panel scores, plus additional sources pulled in on the fly.
Available in your product through the /ask endpoint, or by
chatting with Lenz right on any verified claim’s page on the site.