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Fact Checker

Check every claim before you publish

Check the statements, numbers, and quotes in your draft against real sources, and catch the confident mistakes AI leaves behind.

Claim by claimChecked against sourcesBuilt for AI drafts
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Paste a draft to see the claims. Full report unlocks with Pro.

Verify

See which claims hold up

Every checkable claim gets weighed against what the sources actually say, not how sure the sentence sounds.

The study ran from 2019 to 2023.

Verified

Adoption grew 300% in a single year.

Needs a source

The results were published in Nature.

Verified

Unverified claim

“The report was cited over 10,000 times in its first month.”

No source supports this figure. The closest citation count is in the low hundreds, worth checking before you publish.

Catch

Catch what AI gets confidently wrong

Invented figures, misattributed quotes, dates that are close but wrong: you get the reasoning, not just a red flag, so you can fix it.

What editors say

SofiaResearch editorUK
4 days ago

It catches the confident nonsense

AI hands you a statistic with total conviction and nothing behind it. This flags exactly those lines. We stopped shipping numbers we couldn't back up.

JamesPolicy writerUS
6 days ago

Every figure gets a second look

In our reports a wrong number is a real problem. It pulls the claims that don't hold up and shows the reasoning, so I fix them before publish, not after a reader emails.

OmarNewsletter editorAE
1 week ago

Caught a misattributed quote

It flagged a quote I'd have sworn was right. Turned out I'd mixed up who said it. Small catch, would've been embarrassing.

HannahEditorial QADE
2 weeks ago

My last check before anything goes live

Deadlines mean things slip. This is the pass that catches the claim nobody double-checked.

Questions, answered

What does the fact checker do?

It reviews the checkable claims in your writing, the statements, numbers, dates, and quotes, and flags the ones that don't hold up against sources, so you can fix them before you publish.

Why do I need it for AI drafts?

AI writes confidently even when it's wrong. Invented figures, misattributed quotes, dates that are close but off. The fact checker catches those before a reader does.

Is my text private?

Your text is used to run the check and nothing else. It's never published and never sold.

Catch the errors before your readers do

Run your draft through the fact checker and see which claims hold up.

Paste your draft