Mostly you pay for volume — how much you run through it. Everyone gets the same three tones and a detection score with the reasoning behind it; the paid plans add the sentence map. Save 40% yearly.
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Prices in US dollars, before tax. Any sales tax or VAT is added at checkout where it applies.
Paid plans are subscriptions. They renew automatically each month or year until you cancel, at the price shown above. You can cancel at any time from your account — there is no contract term and no cancellation fee, and cancelling stops the next renewal rather than ending the period you have paid for. See our refund policy and terms.
Every plan includes
✓Three tones — natural, casual and professional
✓AI detection — overall score, confidence and band counts
✓Sign in with Google
✓No ads, on every plan including Free
What a paid plan adds
✓The sentence map — every scored sentence highlighted in your own text
✓The rest of the detection signals, and the raw measurements behind them
Those two, and volume. We have not split the rest across tiers to make the expensive plans look better — the free plan runs the same humanizer and the same detector, and it reports the score, the confidence and the band counts in full.
What the numbers mean
A standard undergraduate essay is about 1,500 words. That is the number worth measuring plans against, and it is why the free plan's single-scan limit is exactly that — you can run a whole essay through without splitting it up.
On monthly allowances that works out at roughly 1 essay humanized and 6 checked on Free, rising to 53 humanized a month on Studio. Studio takes a 15,000-word document in one pass, which covers a full master's dissertation.
Detection is far more generous than humanizing at every tier, because the two cost us very different amounts — our detector runs on our own model, while humanizing calls a paid AI provider on every request.
Why there is no unlimited plan
Every unlimited plan has a limit — it is just not written down anywhere you can read it before you pay. Ours is written down: 250,000 humanizer words a month on Team, and 2,000,000 for detection.
If you need more than that regularly, talk to us and we will quote you properly rather than sell you a word that means nothing.
What paying does not buy
It does not buy a guarantee that your text will pass any particular AI detector. No plan at any price does, here or anywhere else. Detectors update without notice and disagree with each other on identical text — a promise about tomorrow's score is not one anybody can keep.
What a paid plan buys is volume — more words a month, longer documents in a single pass — and the sentence map: your text marked up line by line, rather than the score and band counts the free plan reports. That is the honest description, and it is the one we would rather be held to. More on what detection scores actually mean.
Pricing questions
What can I do on the free plan?
The free plan gives you 2,000 humanizer words a month, 10,000 detection words a month, and up to 1,500 words in a single scan. That last number matters most: 1,500 words is a complete undergraduate essay, so you can run a whole piece through in one go rather than chopping it into fragments. No card required.
Why is the detection allowance so much larger than the humanizer allowance?
Because they cost us very different amounts. Detection runs on our own model on infrastructure we already pay for, so it is close to free at the margin. Humanizing calls a paid AI provider for every request. We would rather pass that difference on than pretend the two are equivalent.
How does yearly billing work?
Yearly billing takes 40% off every paid plan and is charged once. Writer is $129.60 a year, Studio $208.80, and Team $424.80 — the same plans, at 40% less than paying month to month.
Why is there no unlimited plan?
Every unlimited plan has a limit; it is just not written down. Ours is 250,000 humanizer words a month on Team. If you regularly need more, contact us and we will quote you properly.
What is the difference between the plans?
Mostly volume: how many words you can process a month, and how long a single document can be. The one capability Free does not include is the sentence map — the paid plans mark up your text line by line and show the full set of detection signals, where Free reports the overall score, the confidence, the headline signals and how many sentences fall in each band. Every plan has the same three tones and no ads.
What detection does the free plan give me?
10,000 detection words a month, up to 1,500 in one scan, and for each scan an overall score, a confidence read, the headline signals behind it, and a count of how many sentences landed AI-like, mixed and human-like. Reading which specific sentences drove the score — your text highlighted line by line — is on the paid plans.
Does a paid plan guarantee my text will pass an AI detector?
No, and no plan at any price will. Detectors change without notice and disagree with each other on identical text. Paying more buys you more words and longer documents, not a promise about someone else's detector.
Start on the free plan.
A full 1,500-word essay in a single scan, no card required. Upgrade only if you run out.