AI Research Assistant — Verify Any Claim, Find Real Sources

Paste any statement. Lenz researches it across multiple independent sources, debates the evidence, and gives you a sourced verdict with cited references in about a minute.

Why researchers use Lenz

How Lenz researches a claim

  1. Paste the claim — A study finding, a statistic, an assertion you read somewhere. Anything specific you can verify against evidence.
  2. Lenz searches the literature — Multiple independent sources searched in parallel, evidence collected pro and con.
  3. AI models debate — Two AI advocates argue opposing sides. Three independent expert models then score the strength of the evidence.
  4. Cite the sources — A 1–10 confidence score, a sourced conclusion, and the full list of cited references you can use in your own work.

The whole process typically takes about a minute or two. Read more about how Lenz researches claims.

What you can use it for

Research papers & essays

Got a claim you want to use in a paper or essay? Verify it first. Lenz researches the claim across independent sources and shows you the evidence behind its verdict, so you can read the originals yourself.

Verify what your AI told you

ChatGPT, Gemini, and Claude sound confident whether they’re right or wrong. Run the claim through Lenz: see the evidence, watch AI models debate both sides, and walk away with cited sources you can use yourself.

Sourced answers for writers and journalists

Verify a claim before you publish. The cited sources double as your reference list — you walk away with the verdict and the bibliography.

Recently researched

Nuclear waste remains radioactive for thousands of years and requires continuous isolation and monitoring to prevent harm to people and the environment, according to Natural Resources Canada (2024). Mostly True Science Hormonal contraception, including birth control pills and hormonal IUDs, increases the risk of idiopathic intracranial hypertension. False Health Fast food chains add chemicals to their food that are intended to be addictive and encourage repeat purchases. Misleading Health

Browse the full library of verified claims.

Frequently asked questions

Is the AI research assistant free?
Yes. You get 10 free research queries per month, no signup required to try. Plus and Pro plans unlock more if you need them.
How many sources does Lenz check?
Lenz typically retrieves 50+ candidate sources per claim and picks around 20 of the most relevant and authoritative ones for the verdict. Each cited source is scored as supporting, refuting, or neutral, with a relevance score so you can prioritize.
Can I cite Lenz in a research paper?
Cite the underlying sources Lenz found, not Lenz itself. Every verification gives you a real list of references you can use directly in your bibliography. Lenz is the research assistant, the cited evidence is the actual scholarship.
How is this different from Perplexity or ChatGPT?
Perplexity gives a sourced answer. ChatGPT gives a confident one. Lenz verifies one specific claim by debating the evidence with multiple AI models, scoring it on a 1–10 scale, and showing the full reasoning trail. Built for “is this actually true?” rather than “give me an overview.” Read about why Lenz exists.
What about contested claims?
When the expert models disagree, Lenz shows the disagreement instead of papering over it. The disagreement is the transparency. You see the individual scores, the arguments, and decide what to make of them.
Does it handle non-English sources?
The pipeline runs in English, but the underlying search can surface non-English sources when they’re relevant.

Research smarter. Cite real sources.

Paste any claim. Get a sourced verdict and a real reference list in about a minute.

Start researching a claim