Best AI detector and humanizer paid bundles: what each plan includes
Two neighbours cover what this page does not. The humanizer and detector page sets out what each vendor says its detector does and why a vendor's own checker is not independent evidence about that vendor's rewrite. The free AI detector and humanizer guide covers the free pairings. Here the question is narrower: on a paid plan, what do you get of each half, and how is the second half metered.
Ten entry plans, ordered by how the detector half is stated: a numeric allowance first, a shared pool next, and "included, no allowance stated" last. Within each group the larger humanizer request cap comes first. Every figure is the vendor's own, read on the date shown.
How is the detector half metered on each plan?
The humanizer half of every plan is stated in words, requests or rewrites. The detector half is stated four ways, or not at all, and the unit decides what a plan is worth to you.
| Metering | Tools | What a 2,000-word document costs the detector allowance | Read on |
|---|---|---|---|
| Words a month, separate pool | Rewritify (5,000) | 2,000 of 5,000 | 9 November 2026 |
| Words a month, shared pool | HIX Bypass (5,000 shared) | 2,000 to humanize and 2,000 to check, 4,000 of 5,000 | 9 November 2026 |
| Checks or uses a month | WriteHuman (160 checks), Verva (100 uses) | One check per piece submitted; WriteHuman's 600-word cap makes four pieces, four checks | 9 November 2026 |
| Scans a day | StealthWriter (50) | One scan per rewrite, up to 50 in a day | 9 November 2026 |
| Reports a month | Ryne AI (1 a month, $3.99 each after) | One report, or $3.99 for a second | 9 November 2026 |
| No allowance stated | StealthGPT, GPTHuman, Walter Writes AI, Undetectable AI | Unknown from the page | 9 November 2026 |
Rewritify's pricing page states an AI check allowance of 5,000 words a month on Basic and 50,000 on Ultimate, equal to each plan's humanizer pool (Rewritify, pricing, read 9 November 2026). WriteHuman's page states 160 AI detector checks a month on Basic beside 80 humanizer requests (WriteHuman, pricing, read 9 November 2026). Verva's page states 100 detector uses and 10 plagiarism scans on Basic beside 8,000 humanizer words (Verva, pricing, read 9 November 2026). StealthWriter states 50 humanizations and 50 AI scans a day on Starter (StealthWriter, pricing, read 9 November 2026). Ryne AI states one AI Report a month on Sapphire and $3.99 for a single report (Ryne AI, pricing, read 9 November 2026).
Why is the bundled detector not the reading that counts?
Because the same company built the text and the verdict. A vendor's checker is useful for a first look at an output; it is not evidence that an outside detector will read the text the same way. The published research says detectors disagree with each other and degrade on paraphrased text: Weber-Wulff and colleagues tested 14 AI text detectors and found every one below 80 percent accuracy, with accuracy falling further on paraphrased and machine-translated text (Weber-Wulff et al. 2023, International Journal for Educational Integrity, read 9 November 2026). A bundled detector that reads its own vendor's output as human has shown one detector's view on one day.
No detector score should be the only evidence in a misconduct case. The method on this site reads every output on GPTZero, Originality.ai, Copyleaks, Pangram and ZeroGPT, none of which belongs to a humanizer vendor, and reports Turnitin's own published statements rather than any vendor's Turnitin estimate.
| Reading | Who built the detector | What it can show |
|---|---|---|
| The bundled checker on a paid plan | The humanizer vendor | A first look at an output, on the vendor's own terms |
| The five detectors in the published method | Five companies that sell no humanizer | How outside tools read the same output on a dated run |
| Turnitin | Turnitin, not available to the public | Only what Turnitin publishes; no vendor can read it for you |
Six of the ten paid AI humanizer and detector bundles on this page state a detector allowance on their entry plan, and Rewritify's is the largest in words, 5,000 detector words a month beside 5,000 humanizer words at $9 a month billed yearly, read 9 November 2026. The best AI detector and humanizer bundle for a buyer is the plan whose two allowances both fit the month's work. This page lists ten paid entry plans that include both halves, on the same fields, and ranks none by a score; the overall list is the full humanizer ranking and the other audiences are in the best-for hub.
Updated
Short answer
Six of the 10 paid AI humanizer and detector bundles on this page state a detector allowance on their entry plan, and Rewritify's is the largest in words: 5,000 detector words beside 5,000 humanizer words at $9 a month billed yearly, read 9 November 2026. The best AI detector and humanizer bundle for a buyer is the plan whose two allowances both fit the month's work, because the detector half is metered separately on most tools and not at all on four. This page lists ten paid entry plans that include both halves on the same fields, humanizer cap, detector allowance, price and date, and ranks none by a score. The free pairings and the question of whether a vendor's own checker proves anything are on separate pages.
Which paid plans bundle the best AI detector and humanizer allowance?
Price is reported and never ranked. Detector readings from the five independent detectors in the published method join every block when the first run publishes; nothing here is a reading.
| Order | Tool | Best for | Main limitation | Free tier | Cheapest paid plan with both (checked on 9 November 2026 unless dated) | Humanizer cap per request | Detector allowance on that plan | Review |
|---|---|---|---|---|---|---|---|---|
| 01 |  Rewritify | Long inputs with a detector allowance that matches the humanizer's | 5,000 humanizer words a month on Basic is a few documents; the yearly toggle shows two plans at the same $16 | 200-word trial, once | Basic, $14 monthly or $9 a month billed yearly, 5,000 humanizer words a month | 3,000 words | AI check on 5,000 words a month | Review of Rewritify |
| 02 |  StealthWriter | Daily batches, long inputs, a scan for every rewrite | Rewrites and scans are metered a day and cannot be banked | 10 rewrites and 10 scans a day, 1,000 words each | Starter, $20 a month, 50 humanizations a day | 5,000 words | 50 AI scans a day | Review of StealthWriter |
| 03 |  WriteHuman | A fixed number of 600-word pieces a month, each with two outputs to choose from | A 100-word fix costs one of 80 requests, the same as a full 600-word rewrite | 3 requests a month at 250 words | Basic, $20 monthly or $12 a month billed $144 yearly, 80 requests a month | 600 words | 160 detector checks a month | Review of WriteHuman AI |
| 04 |  TwainGPT, now Verva | Light users who want a plagiarism scan in the same login | 8,000 humanizer words a month is the smallest pool here for an $8 price; no free tier or trial | None stated (8 November 2026) | Basic, $8 a month billed annually, 8,000 humanizer words | Not stated | 100 detector uses and 10 plagiarism scans | Review of TwainGPT |
| 05 |  Ryne AI | Students who want a humanizer, chat, notes and citations in one account | Coins are never converted to words on the pricing page; one detector report a month | Amethyst, 100 coins once, 250 words a run | Sapphire, $19.99 a month, 10,000 coins | 750 words | 1 AI Report a month; extra reports $3.99 each | Review of Ryne AI |
| 06 |  HIX Bypass | One long input a month with a scan from the same pool | 5,000 words a month on Standard, shared between humanizer and detector, is used up in two inputs | None listed | Standard, $14.99 monthly or $9.99 a month yearly, 5,000 words a month | 3,000 words | Shares the 5,000-word pool | Review of HIX Bypass |
| 07 |  StealthGPT | High monthly volume in 1,000-word pieces with a 0 to 100 score beside it | The highest monthly entry price here; a $1 trial that rolls into $29.99 after three days | None; $1 three-day trial | Pro, $29.99 a month after the trial, 50,000 words a month | 1,000 words | Included; no allowance stated | Review of StealthGPT |
| 08 |  GPTHuman | 1,000-word pieces on a 25,000-word month, under $9 billed yearly | The trial is 300 words once; the page states a dollar sign without a currency for a Canadian company | 300 words of output, once | Starter, $15 monthly or $8.25 a month billed $99 yearly, 25,000 words a month | 1,000 words of output | Included; the vendor states it is limited on the free plan and states no paid allowance | Review of GPTHuman |
| 09 |  Walter Writes AI | A 30,000-word month with three strength settings and a detector beside it | 750 words a request on Starter is the smallest paid cap here but one; 1,500 needs Pro at $13 billed yearly | 300-word trial, no card (8 November 2026) | Starter, $8 a month billed $96 yearly, 30,000 words a month | 750 words | Included as a free detector with an AI probability score; no allowance stated | Review of Walter Writes AI |
| 10 |  Undetectable AI | Short texts on a small monthly pool, paid a year up front | The $5 rate needs $60 charged at once; no request cap and no detector allowance published | 250 words total trial (8 November 2026) | Entry plan, $5 a month billed $60 yearly or $9.99 monthly, 10,000 words a month | Not stated | Included; no allowance stated | Review of Undetectable AI |
Which humanizer and detector bundle should you choose?
One line per job. Each name links to its full review.
- Choose Rewritify if you send long inputs and want a detector allowance stated in words that equals the humanizer's.
- Choose StealthWriter if your work comes in daily batches and you want a scan for every rewrite, metered by the day.
- Choose WriteHuman if you rewrite a predictable number of 400 to 600 word pieces and want two detector checks for every request.
- Choose Verva if you want a plagiarism scan beside the detector and your month is under 8,000 humanizer words.
- Choose Ryne AI if you want the detector as an occasional report inside a student study suite, and accept coins as the unit.
- Choose HIX Bypass if you have one long document a month and will spend the same 5,000-word pool on both halves.
- Choose StealthGPT if you need 50,000 words a month in 1,000-word pieces and want a 0 to 100 score beside each.
- Choose GPTHuman if 1,000-word pieces on a 25,000-word month suit you and a detector with no stated allowance is acceptable.
- Choose Walter Writes AI if a 30,000-word month with a strength setting matters more than request size, and you will split at 750 words.
- Choose Undetectable AI if your texts are short and a year's charge up front for 10,000 words a month is acceptable.
How the ranking works
- Inputs
- 24 texts24 AI-written inputs across six genres plus 6 human-written controls, the same set for every tool.
- Detectors
- 5 namedGPTZero, Originality.ai, Copyleaks, Pangram and ZeroGPT.
- Weights
- Meaning kept35
- Errors introduced20
- Detector pass rate30
- Limits and access15
- Run date
The ten plans on the same fields
Every free tier gets the same fields, in rank order. The disc is the sample number it was poured under in the full run.
Sample 01: Rewritify
Rewritify sells the humanizer and detector as a pair with the same monthly allowance on each plan, read 9 November 2026.
- Best for
- long inputs with a detector allowance matched to the humanizer's.
- Main limitation
- 5,000 humanizer words a month on Basic is a few documents, and the yearly toggle priced Ultimate and Unlimited at the same $16 a month on the day read.
- Free tier
- 200-word trial, once.
- Cheapest plan with both
- Basic, $14 monthly or $9 a month billed yearly, read 9 November 2026.
- Humanizer cap
- 3,000 words a request.
- Detector allowance
- 5,000 words a month.
Sample 02: StealthWriter
StealthWriter meters both halves by the day, read 9 November 2026, and is a different product from StealthGPT.
- Best for
- daily batches of long inputs, each with a scan.
- Main limitation
- 50 rewrites and 50 scans a day cannot be banked for a heavy week.
- Free tier
- 10 rewrites and 10 scans a day at 1,000 words.
- Cheapest plan with both
- Starter, $20 a month, read 9 November 2026.
- Humanizer cap
- 5,000 words a request.
- Detector allowance
- 50 scans a day.
Sample 03: WriteHuman
WriteHuman prices in requests and gives two detector checks for every humanizer request on Basic, read 9 November 2026.
- Best for
- a predictable number of 600-word pieces a month with two outputs each.
- Main limitation
- a short fix costs a whole request.
- Free tier
- 3 requests a month at 250 words.
- Cheapest plan with both
- Basic, $20 monthly or $12 a month billed $144 yearly, read 9 November 2026.
- Humanizer cap
- 600 words a request.
- Detector allowance
- 160 checks a month.
Sample 04: TwainGPT, now Verva
Verva, formerly TwainGPT, bundles a humanizer, a detector and a plagiarism checker on every plan, read 9 November 2026.
- Best for
- light users who want all three under one login.
- Main limitation
- 8,000 humanizer words a month on Basic, and no free tier or trial to test before paying.
- Free tier
- none stated, checked on 8 November 2026.
- Cheapest plan with both
- Basic, $8 a month billed annually, read 9 November 2026.
- Humanizer cap
- not stated.
- Detector allowance
- 100 uses and 10 plagiarism scans.
Sample 05: Ryne AI
Ryne AI sells a detector reading as a product, one AI Report a month on Sapphire and $3.99 for a single report, read 9 November 2026.
- Best for
- students who want the humanizer inside a study suite.
- Main limitation
- coins are never converted to words on the pricing page, and the report is described as a Turnitin score without a stated method.
- Free tier
- Amethyst, 100 coins once, 250 words a run.
- Cheapest plan with both
- Sapphire, $19.99 a month, read 9 November 2026.
- Humanizer cap
- 750 words a run.
- Detector allowance
- 1 AI Report a month.
Sample 06: HIX Bypass
HIX Bypass, now at hixbypass.com, runs its detector from the same word pool as its humanizer, read 9 November 2026.
- Best for
- one long input a month with a scan from the same pool.
- Main limitation
- 5,000 shared words a month on Standard, which a 3,000-word input and its check nearly exhaust.
- Free tier
- none listed.
- Cheapest plan with both
- Standard, $14.99 monthly or $9.99 a month on the yearly toggle, read 9 November 2026.
- Humanizer cap
- 3,000 words a request.
- Detector allowance
- shared with the 5,000-word pool.
Sample 07: StealthGPT
StealthGPT lists a built-in AI detector with a 0 to 100 score beside its humanizer and states no detector allowance on Pro, read 9 November 2026.
- Best for
- 50,000 words a month in 1,000-word pieces.
- Main limitation
- the highest monthly entry price on this page, and a $1 trial that rolls into $29.99 after three days.
- Free tier
- none; $1 three-day trial.
- Cheapest plan with both
- Pro, $29.99 a month, read 9 November 2026.
- Humanizer cap
- 1,000 words a request.
- Detector allowance
- not stated.
Sample 08: GPTHuman
GPTHuman lists a built-in detector, limited on the free plan, and states no paid allowance for it, read 9 November 2026.
- Best for
- 1,000-word pieces on a 25,000-word month.
- Main limitation
- the trial is 300 words once; the pricing page shows a dollar sign with no currency code.
- Free tier
- 300 words of output.
- Cheapest plan with both
- Starter, $15 monthly or $8.25 a month billed $99 yearly, read 9 November 2026.
- Humanizer cap
- 1,000 words of output.
- Detector allowance
- not stated.
Sample 09: Walter Writes AI
Walter Writes AI lists a free AI detector with an AI probability score beside a humanizer with three strength settings, and states no detector allowance on Starter, read 9 November 2026.
Vendor site: Walter Writes AI.
- Best for
- a 30,000-word month with a strength setting and a detector beside it.
- Main limitation
- 750 words a request on Starter; a 1,500-word cap needs Pro at $13 a month billed $156 yearly.
- Free tier
- 300-word trial, no card, checked on 8 November 2026.
- Cheapest plan with both
- Starter, $8 a month billed $96 yearly, read 9 November 2026.
- Humanizer cap
- 750 words a request.
- Detector allowance
- not stated.
Sample 10: Undetectable AI
Undetectable AI lists a detector that analyses text as a detector would and flags likely parts, and states no allowance for it on the entry plan, read 9 November 2026.
- Best for
- short texts on a small monthly pool.
- Main limitation
- the $5 rate is $60 charged at once; no request cap and no detector allowance are published.
- Free tier
- 250-word trial in total, checked on 8 November 2026.
- Cheapest plan with both
- 10,000 words a month, $5 a month billed $60 yearly or $9.99 monthly, read 9 November 2026.
- Humanizer cap
- not stated.
- Detector allowance
- not stated.
Why do lists of humanizer and detector bundles disagree?
Most count a detector as "included" and stop, so a plan with 5,000 detector words and a plan with none sit in the same tier, and most rank on the vendor's own pass claims, which no outside reader can check. This page states the detector allowance in the vendor's unit and leaves the cell blank where the vendor does. The independent detector columns join every block when the first run under the published method is dated and posted.
Questions about AI humanizers for humanizer and detector paid
What is the best AI detector and humanizer bundle?
Of the 10 paid entry plans here that include both, Rewritify states the largest detector allowance in words, 5,000 a month matched to its humanizer, at $9 a month billed yearly, read 9 November 2026; which humanizer keeps the most meaning is what the published method measures, and no tool has a score yet.
Which paid humanizer plans include an AI detector?
All ten on this page: Rewritify, Verva, StealthWriter, WriteHuman, Ryne AI, HIX Bypass, GPTHuman, StealthGPT, Undetectable AI and Walter Writes AI each list a detector on or beside the entry plan, read 8 and 9 November 2026.
How is the detector metered on a paid plan?
Four ways, read 9 November 2026: in words (Rewritify 5,000 a month, HIX Bypass from the shared pool), in checks (WriteHuman 160 a month, Verva 100 uses), in scans a day (StealthWriter 50) or in reports (Ryne AI 1 a month); four vendors state no allowance.
Is a vendor's own AI detector reliable?
It is not independent evidence about that vendor's rewrite, because the same company built the text and the verdict; this site reads every output on five detectors it does not own and reports Turnitin's published statements rather than any vendor's Turnitin score.
What is the cheapest humanizer and detector bundle?
This site reports price and never ranks on it; the entry plans here run from $5 a month billed $60 yearly at Undetectable AI to $29.99 monthly at StealthGPT, read 9 November 2026, and the detector allowance differs more than the price.
Does Walter Writes AI include a detector on Starter?
Walter Writes AI lists an AI detector with an AI probability score beside its humanizer and states no detector allowance on the Starter plan's pricing block, read 9 November 2026; Starter is 30,000 humanizer words a month at $8 billed $96 yearly with a 750-word request cap.
Can a paid detector tell me whether Turnitin will flag my text?
No: Turnitin's detector is not available to the public, so no vendor can read it for you; Ryne AI sells an AI Report it describes as a Turnitin score without saying how it is obtained, read 9 November 2026, and this site reports only Turnitin's own statements.
Why buy a bundle instead of a free detector?
A paid bundle saves a paste between two tabs and gives a metered allowance that renews; it does not give an independent reading, so the sensible use is to run the vendor's checker for a first look and an outside detector for the one that counts.
Sources
- Rewritify, pricing, read 9 November 2026: 5,000 humanizer and 5,000 detector words on Basic; 3,000-word input; $14 or $9
- StealthWriter, pricing, read 9 November 2026: 50 humanizations and 50 scans a day on Starter; 5,000 words per input; $20
- WriteHuman, pricing, read 9 November 2026: 80 requests, 600 words, 160 detector checks on Basic; $20 or $12
- Verva, pricing, read 9 November 2026: 8,000 humanizer words, 100 detector uses, 10 plagiarism scans on Basic; $8
- Ryne AI, pricing, read 9 November 2026: Sapphire $19.99, 750 words a run, 1 AI Report a month; $3.99 a report
- Weber-Wulff et al. 2023, read 9 November 2026: 14 detectors below 80 percent accuracy; worse on paraphrased text
- Vendor pricing pages, checked 8 and 9 November 2026: Plans, caps and detector statements for HIX Bypass, StealthGPT, GPTHuman, Walter Writes AI and Undetectable AI
Revision log
| Page published. |
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