StealthWriter review

StealthWriter's free tier allows 10 humanizations a day at up to 1,000 words per input, read on its pricing page on 9 November 2026. StealthWriter is not StealthGPT: the two are separate products from separate companies, and the StealthGPT review covers the other one. This StealthWriter review covers what each plan allows, what the vendor states about its output, and where the tool sits in the full humanizer ranking under one published method.

What does StealthWriter itself claim?

The pricing page is restrained compared with most in this category. It describes natural, human-like output, lists an AI detector in two versions and a deep scan on every tier, and names its models, read 9 November 2026 (StealthWriter pricing page). The page carries no success rate, no detector pass figure and no user count. That absence is worth stating because it is rare: the site's method rewards nothing for modesty, but a reader comparing vendor claims should know that this one makes few.

The model split is the one claim with teeth. The free tier runs Ghost 5.2 Mini, and every paid plan adds Ghost 5.2 Pro and the Ghost Legacy models, read 9 November 2026. The page does not describe how the Pro model differs from Mini beyond the name, so a published run will record both, with the paid model as the stronger documented option.

What does the research say about paraphrased text?

StealthWriter rewrites text, and the published research on paraphrasing explains why a rewrite moves detector readings and why that is not the whole story. 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). Krishna and colleagues showed that a paraphrase model dropped DetectGPT's detection rate from 70.3 percent to 4.6 percent at a 1 percent false positive rate (Krishna et al. 2023, arXiv, read 9 November 2026).

Detector makers answer in kind. GPTZero states that its model shields against common evasion methods, paraphrasing among them, and that it keeps its false positive rate at no more than 1 percent when evaluating AI against human text (GPTZero technology page, read 9 November 2026). A humanizer and a detector are moving targets for each other, and a reading is true for its date.

What none of those pages measure is whether the rewrite kept the writer's claims. That is why the method on this site weights meaning kept at 35 points of 100, errors added at 20, detector pass rate at 30 and limits and access at 15. No detector score should be the only evidence in a misconduct case.

What this StealthWriter review draws on

Everything above comes from the vendor's pricing page and the two studies linked. The run figures, when published, sit on the method page and in this review, with the raw outputs free to download.

What does StealthWriter change in your text?

The pricing page describes outcomes, natural and human-like output ready to publish, rather than mechanics, read 9 November 2026. The model names are the only lever a buyer controls: Ghost 5.2 Mini for free, Ghost 5.2 Pro and the Legacy models on any paid plan. The site's protocol runs each tool on its default mode and, where a stronger documented mode exists, that mode as a second row, so a published run will show StealthWriter on Mini and on Pro.

A rewriter in this category substitutes words, reorders clauses, varies sentence length and shifts tone. The reader-side costs the method rates are claims dropped, claims invented, grammar errors introduced per 100 words, and readability change. Those figures appear here once a run is published.