Litimus scores rhythm, phrasing, and repetition the way an editor reads a manuscript — then shows its work sentence by sentence, so you can see exactly why it turned the color it did.
Everything below runs the moment you paste text — nothing leaves your session unless you save a report.
Plain text, a Google Doc link, or .docx / .pdf on paid plans. 25-word minimum for a stable read.
Sentence rhythm, phrase frequency, vocabulary spread, and repetition are scored independently, then combined.
A single likelihood score plus margin notes pointing at exactly which sentences moved it.
No black box score. Every signal below is visible in your report.
Human sentences swing between short and long; AI output tends toward a narrow, even rhythm. Low variance raises the score.
Phrases like "moreover," "it is important to note," and "in conclusion" cluster far more densely in generated text.
A low ratio of unique words to total words suggests safe, repeated word choices rather than a wide natural vocabulary.
Repeated three-word sequences across a passage are rare in human drafts and common in generated ones.
Overuse of em dashes and semicolons, or an absence of the small errors humans make, both shift the score.
Paragraphs of near-identical length and matching openers read as templated rather than composed.
We'd rather lose a sale than oversell what statistical detection can do. Every report on Litimus carries the same caveats we're stating here.
A score is a starting point for a conversation, never a verdict. Each page below covers how to use one fairly.
Use the six signals as edit notes and a second opinion on drafts and submissions.
Want the background? Read how AI detectors work, or see how Litimus compares with GPTZero, Turnitin and Originality.ai.
Every tier includes the full margin-notes report. Higher tiers add volume, file types, and integrations.
Prices are in US dollars, billed securely by Paddle, our merchant of record — no currency conversion or surprise FX fee.
A one-time top-up for a single deadline — no subscription, no recurring charge. Adds 10,000 words to your daily limit, valid for 24 hours, stacks on top of any plan including Free.