Walter Writes AI vs Grammarly AI Humanizer

Walter Writes AI, because every figure a buyer needs is printed. Starter is 30,000 words a month at 750 words a request, Pro 70,000 at 1,500, Elite 200,000 at 2,000, read 9 November 2026, so a writer who knows their monthly volume and their longest piece can pick a tier from the page. Grammarly prints prompts instead. Free is 100 AI prompts a month and Pro 2,000 a member, read 9 November 2026, and neither page read says whether one humanizer run is one prompt or whether the free product page tool draws on the 100 at all.

Both read 9 November 2026. The pattern that favours Grammarly is low, steady use on the free account, which renews where Walter's 300 trial words do not. The pattern that favours Walter is anyone who needs to know the ceiling. Price is reported on this site and never scored.

No, and the difference matters more than the names. Walter's three settings are strengths: the vendor describes Simple, Standard and Enhanced as a range from subtle to advanced, read 9 November 2026, so the setting says how far from the input the output may move. Grammarly's four presets are voices, shown on its product page as an executive voice and a creative voice among others, plus a custom voice built from a pasted writing sample, read 9 November 2026, so the setting says in which direction the text moves and leaves the distance unstated.

For a reader who cares about meaning kept, the voice model is the more conservative shape on paper, and the strength ladder gives more control over the trade. The site's protocol runs each tool on its default setting and, where a stronger documented mode exists, that mode as a second row. For Walter that is Standard and Enhanced; for Grammarly the default voice on the run date is the only row, because a custom voice is not a documented strongest mode.

Both read 9 November 2026.

The two vendors face opposite ways. Walter's homepage ships a built-in detector that returns what the vendor calls an authenticity score after each rewrite, read 9 November 2026; a vendor's own detector reading its own output is not independent evidence, and no page here repeats it as one. Grammarly's product page states that the tool is not intended to get past AI detectors and works on clarity and coherence instead, and asks users to acknowledge AI assistance in academic or professional work, read 9 November 2026. Among the twelve tools in the ranking, Grammarly is the one vendor that declines the detector claim.

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 light rewrite of the kind Grammarly describes is still a paraphrase, so detector readings may move even where the vendor does not aim at them, and a strength ladder like Walter's moves them by design. Either way a reading is true for its date.

The published method weights meaning kept at 35 points of 100, errors added at 20, detector pass rate at 30 and limits and access at 15, with two editors rating every output blind. Under that weighting Grammarly's meaning and error scores are the ones to watch, since its vendor promises nothing on detectors, and Walter's Enhanced row is the one that tests how much meaning survives its strongest setting. When a run is published, this page gains those fields for both tools. No detector score should be the only evidence in a misconduct case.