Walter Writes gives more words on its smaller plans, lists 80+ languages and refunds a first purchase. Lumi starts cheaper at $9.90 a month and offers unlimited words for $49.90, with grammar and plagiarism checks included.
300 free words when you sign up · Facts checked October 18, 2026
List prices in US dollars before tax, as each company's own pages showed them on October 18, 2026. Where a page doesn't say, we write "Not stated". Numbers in brackets link to the sources at the bottom.
| Feature | UsLumi Humanizer | Walter Writes AI |
|---|---|---|
| Cheapest plan, monthly billing | $9.90/mo[1] Starter, 10,000 words a month | $12/mo[3] Starter, 30,000 words a month |
| Cheapest plan, yearly billing | $6.00/mo[1] $72.00 billed yearly | $8/mo[3] $96 billed yearly |
| What about $50 a month buys | Unlimited words for $49.90/mo[1] Up to 3,000 words per request | 200,000 words for $47/mo[3] Elite plan |
| Words per month, by plan | 10,000 / 100,000 / Unlimited[1] Starter / Pro / Unlimited | 30,000 / 70,000 / 200,000 / 500,000[3] Starter / Pro / Elite / Teams |
| Words per request, by plan | 500 / 1,000 / 3,000[1] Starter / Pro / Unlimited | 750 / 1,500 / 2,000 / 2,000[3] An older help article lists lower limits |
| Languages | English only | 80+[3] |
| Free option | 300 free words Added to your account when you sign up | 300-word trial[4] Plus 3 days of AI detector access. Email sign-up, no card. |
| Refunds | No refunds[2] Cancel anytime; you keep access until the end of the paid period | First subscription only[5] Within 3 days and with 1,500 words or fewer used. Renewals are not refunded. |
| Also included | AI detector, paraphraser, grammar checker, plagiarism checker[1] On every plan. No Chrome extension or public API. | AI detector, MCP access, API platform[3] Also lists "ChatGPT watermark removal" |
Walter Writes AI
Lumi Humanizer
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Walter Writes is strong on mid-sized plans and language support, and its first-purchase refund lowers the risk of trying it. Lumi is cheaper to start and cheaper at the high end, and bundles more writing checks. Try both free trials on the same draft before deciding.
Quick answers about Lumi Humanizer vs Walter Writes AI.
Lumi's entry plan is cheaper ($9.90 a month against $12) but includes fewer words (10,000 against 30,000). At the top end, Lumi's $49.90 plan has unlimited words, while Walter's $47 Elite plan includes 200,000.
Yes. Lumi gives 300 free words when you sign up. Walter Writes gives a 300-word trial plus 3 days of AI detector access after an email sign-up, with no card needed.
Walter Writes refunds a first subscription if you ask within 3 days and have used 1,500 words or fewer. Lumi does not offer refunds, but you can cancel anytime.
Walter Writes lists 80+ languages on its pricing page. Lumi works in English only.
Still have questions? Visit our help center or read our blog guides.
Plans change often. If something here is out of date, email contact@lumihumanizer.com and we'll fix it.
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