Fact-check your research

You’re about to cite a source that doesn’t exist.

AI-generated text, Wikipedia, and even textbooks can get it wrong. Verify claims for your research paper, essay, or homework — in seconds.

Verify a claim now

Why students need fact-checking

Whether you’re writing a research paper, finishing an essay, or doing homework, bad sources can cost you. Here’s what’s at stake:

How Lenz helps students research smarter

  1. Find a claim — Copy a claim from your source material — a textbook, article, or website
  2. Check it with Lenz — Paste the claim into Lenz. The system researches it across multiple independent sources.
  3. See the verdict — Get a truthfulness score from 1–10, a conclusion label, and cited sources
  4. Cite credible sources — Use the sources Lenz found to strengthen your bibliography

It’s like having a fact-checking assistant built into your research workflow.

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What students use Lenz for

Research papers

Verify claims from journal articles, textbooks, and online sources before citing them in your paper.

Health research →

Essays & homework

Quick-check facts for shorter assignments. Don’t let a bad claim tank your grade.

Common myths →

AI-assisted research

Using ChatGPT or Gemini for research? Verify what the AI told you before you cite it.

Fact-check your AI →

Real examples: claims students might cite

Claim from a source

“Vitamin C cures the common cold.”

Lenz verdict

False (3/10)

Vitamin C may slightly reduce the duration of colds in some populations, but it does not cure or prevent them. The claim overstates the evidence.

Claim from a source

“Einstein failed math as a child.”

Lenz verdict

False (2/10)

This is a popular myth. Einstein excelled at mathematics from a young age and mastered calculus by 15. The confusion may stem from a misunderstood grading-scale reversal at his Swiss school.

Claim from a source

“The Great Wall of China is visible from space with the naked eye.”

Lenz verdict

False (1/10)

Multiple astronauts and NASA have confirmed the Great Wall is not visible from low Earth orbit without aid. It’s too narrow, despite its length.

Browse verified claims in the Lenz library.

Research tips for students

  1. Don’t trust a single source — Cross-reference claims across multiple independent sources before citing.
  2. Check the date — Outdated studies can lead to outdated conclusions. Look for recent evidence.
  3. Evaluate the source — Peer-reviewed journals and government data are more reliable than blogs or opinion pieces.
  4. Watch for bias — Consider who published the information and why. Advocacy groups may present data selectively.
  5. Use Lenz as a starting point — Lenz gives you a verdict and sources, but always read the original sources yourself.

Frequently asked questions

Is Lenz free for students?
You get 5 free fact-checks per month — no credit card required. That’s usually enough for a paper or assignment. Need more? Subscriptions unlock more.
Can I use Lenz for any subject?
Lenz works across all subjects — history, science, politics, health, economics, and more. If the claim can be verified against evidence, Lenz can check it.
Can my teacher see what I checked?
No. Your fact-checks are private to your account. Only claims published to the Library are publicly visible.
Does Lenz help me find sources?
Yes. Every fact-check includes cited sources — real articles, studies, and data that you can reference in your own work.
What if a claim is unverifiable?
Lenz will tell you. If there isn’t enough evidence to confirm or deny a claim, you’ll see an “Unverifiable” label — which is still useful information for your research.
Can Lenz help me build a bibliography?
Yes. Every fact-check includes cited sources with links to the original articles, studies, and data. You can use these real, verified references to strengthen your bibliography or works-cited page.

Get better grades. Cite smarter.

Verify claims before you cite them. It takes seconds and could save your grade.

Start fact-checking now