Best AI Humanizers in 2026: Prices and Free Limits
Seven humanizers compared on what they charge, what the free plan allows and how many words a month you actually get.
Short answer: Walter Writes has the lowest price per word among entry plans with a stated word allowance. Its Starter tier is $8 a month billed yearly for 30,000 words. Undetectable AI's 10,000-word plan costs $5.00 a month on the same billing, but that buys a third of the words.
Every free option has a cap. Three of the seven tools keep a free plan: 3 requests a month at WriteHuman, 500 words a month at AIHumanizer, and a 1,000-word input limit at StealthWriter. The rest offer a trial. Price answers the easy question. A humanizer changes how a draft reads, and no tool here changes what your editor, client or school allows. For the wider category, see the AI writing tools ranking.
Key facts7 tools compared: Walter Writes, GPTHuman, Phrasly, WriteHuman, Undetectable AI…
- 7 tools compared: Walter Writes, GPTHuman, Phrasly, WriteHuman, Undetectable AI, StealthWriter, AIHumanizer
- GPTHuman (best for: Writers who publish several long pieces a month): Starter $8.25/mo billed yearly ($99/yr) for 25,000 words; Plus $14/mo ($168/yr) for 60,000
- Phrasly (best for: Editors with unpredictable volume who want one flat monthly price): $2 for a 3-day trial (1,000 words); Unlimited $10.99/mo billed yearly, no free plan
- WriteHuman (best for: Writers who want a free plan to test before any paid commitment): Free plan: 3 requests a month; Basic $12/mo billed yearly ($144/yr), 80 requests
Toolradar data: Toolradar evaluated 128 AI writing tools for its own ranking of that category, and this page narrows the field to the tools sold to rewrite a draft rather than generate one. The buying question is simpler than the marketing: how many words you get, what the free plan allows, and what the next paid step costs.
Toolradar's AI writing ranking is the source of the count.
Methodology: we checked each vendor's own pricing page in October 2026, or its home page where the plans sit, and quote prices as shown.
Where a page shows a dollar sign without a currency code, we read it as US dollars.
Tools with no dollar price we could confirm on the vendor's own site are left out rather than estimated, except AIHumanizer, which stays in on its free plan with its paid prices marked as not shown.
Walter Writes and GPTHuman lead on cost per word among entry plans with a stated word allowance. AIHumanizer sits last, since its paid prices are not shown.
Top Picks
Based on features, real-world fit, and value for money.
The lowest price per word among entry plans with a stated word allowance. The 750-word request cap on Starter means long drafts go in sections.
Starter $8/mo billed yearly ($96/yr) for 30,000 words; free 300-word trial
Writers and small teams who edit AI drafts every week
The 300-word free tier is a trial, not a working plan, but Plus covers 60,000 words a month for under $170 a year.
Starter $8.25/mo billed yearly ($99/yr) for 25,000 words; Plus $14/mo ($168/yr) for 60,000
Writers who publish several long pieces a month
Unlimited humanizations on a single plan, but no permanent free plan: the only way in is a $2 three-day trial.
$2 for a 3-day trial (1,000 words); Unlimited $10.99/mo billed yearly, no free plan
Editors with unpredictable volume who want one flat monthly price
| Tool | Pricing | Best for |
|---|---|---|
| Walter Writes | Starter $8/mo billed yearly ($96/yr) for 30,000 words; free 300-word trial | Writers and small teams who edit AI drafts every week |
| GPTHuman | Starter $8.25/mo billed yearly ($99/yr) for 25,000 words; Plus $14/mo ($168/yr) for 60,000 | Writers who publish several long pieces a month |
| Phrasly | $2 for a 3-day trial (1,000 words); Unlimited $10.99/mo billed yearly, no free plan | Editors with unpredictable volume who want one flat monthly price |
| WriteHuman | Free plan: 3 requests a month; Basic $12/mo billed yearly ($144/yr), 80 requests | Writers who want a free plan to test before any paid commitment |
| Undetectable AI | 10,000 words: $5.00/mo billed yearly ($60/yr) or $9.99/mo monthly; 250-word trial | Writers who want clear word tiers and a predictable bill |
| StealthWriter | Free plan ($0, 1,000 words per input); Starter $20/mo, Plus $50/mo, Pro $100/mo | Writers who want a free plan to start on and long inputs on paid tiers |
| AIHumanizer | Free plan: 500 words a month (80 per input); paid plans show no dollar price | Occasional users who want a free tool before any paid commitment |
Pricing read from each vendor's own pricing page, checked Oct 2026. Every vendor here publishes a price.
Walter Writes
The lowest price per word among entry plans with a stated word allowance. The 750-word request cap on Starter means long drafts go in sections.
- Pricing
- Starter $8/mo billed yearly ($96/yr) for 30,000 words; free 300-word trial
Best for: Writers and small teams who edit AI drafts every week
GPTHuman
The 300-word free tier is a trial, not a working plan, but Plus covers 60,000 words a month for under $170 a year.
- Pricing
- Starter $8.25/mo billed yearly ($99/yr) for 25,000 words; Plus $14/mo ($168/yr) for 60,000
Best for: Writers who publish several long pieces a month
Phrasly
Unlimited humanizations on a single plan, but no permanent free plan: the only way in is a $2 three-day trial.
- Pricing
- $2 for a 3-day trial (1,000 words); Unlimited $10.99/mo billed yearly, no free plan
Best for: Editors with unpredictable volume who want one flat monthly price
WriteHuman
It counts requests rather than words, so the 600-word cap per request on Basic decides how you split a long article.
- Pricing
- Free plan: 3 requests a month; Basic $12/mo billed yearly ($144/yr), 80 requests
Best for: Writers who want a free plan to test before any paid commitment
Undetectable AI
Word tiers run from 10,000 to 50,000 a month, and yearly billing cuts the price about in half, but it has no free plan.
- Pricing
- 10,000 words: $5.00/mo billed yearly ($60/yr) or $9.99/mo monthly; 250-word trial
Best for: Writers who want clear word tiers and a predictable bill
StealthWriter
Paid tiers take 5,000 words per input and yearly billing saves 17 percent, but the pricing page lists input limits, not a monthly word total.
- Pricing
- Free plan ($0, 1,000 words per input); Starter $20/mo, Plus $50/mo, Pro $100/mo
Best for: Writers who want a free plan to start on and long inputs on paid tiers
AIHumanizer
The free plan covers 500 words a month, and paid tiers list word limits but no dollar prices, so ask before you sign up.
- Pricing
- Free plan: 500 words a month (80 per input); paid plans show no dollar price
Best for: Occasional users who want a free tool before any paid commitment
What it is
An AI humanizer is a rewriting tool. You paste a draft that a model wrote, and it returns a version with more varied sentence length and fewer predictable phrasings. It does not verify facts, add sources or change the argument, so the edit that matters is still yours.
Why it matters
The reason to pay for one is time. A rewrite pass on a 2,000-word draft can be quicker than a manual one, which leaves more hours for the fact checks and examples only a person can supply. The reason not to trust the output is that smoothing can turn a specific claim into a vague one.
Key features to look for
Pricing
Prices are each vendor's own, checked in October 2026.
For a 30,000-word month on yearly billing, the plans that cover it cost $96 a year at Walter Writes Starter, $144 a year at WriteHuman Basic (50 of its 80 monthly requests, at 600 words each), $168 a year at GPTHuman Plus (60,000 words) and $189 a year at Undetectable AI's 35,000-word plan.
Phrasly's Unlimited plan costs $131.88 a year ($10.99 a month billed yearly). It is the flat option if your volume may climb past any monthly cap.
Walter Writes' Elite tier, above the entry plans, lowers the price per word further.
At $312 a year for 200,000 words a month, it works out to about 13 cents per 1,000 words, against about 27 cents on Starter.
Toolradar keeps profiles of Undetectable AI, WriteHuman and Phrasly for side-by-side checks.
If you draft with a general assistant first, the ChatGPT review, the Claude review and the ChatGPT pricing breakdown cover the models most humanizer users start from.
| Plan | Price | Best for |
|---|---|---|
| Walter Writes Starter | $8/mo billed yearly ($96/yr) | 30,000 words a month, 750 words per request |
| Walter Writes Elite | $26/mo billed yearly ($312/yr) | 200,000 words a month, 2,000 words per request |
| Walter Writes Teams | $99/mo billed yearly ($1,188/yr) | 500,000 words a month for 10 team members |
| GPTHuman Starter | $8.25/mo billed yearly ($99/yr); $15/mo monthly | 25,000 words a month |
| GPTHuman Plus | $14/mo billed yearly ($168/yr); $25/mo monthly | 60,000 words a month |
| Phrasly Unlimited | $10.99/mo billed yearly | Unlimited humanizations on one plan |
| Phrasly trial | $2 for 3 days | 1,000 humanization words during the trial |
| WriteHuman Free | Free | 3 requests a month, 250 words per request |
| WriteHuman Basic | $12/mo billed yearly ($144/yr); $20/mo monthly | 80 requests a month, 600 words per request |
| Undetectable AI 10,000 words | $5.00/mo billed yearly ($60/yr); $9.99/mo monthly | 10,000 words a month, 250-word free trial |
| StealthWriter Free | Free | 1,000 words per input |
| StealthWriter Starter | $20/mo | 5,000 words per input; yearly billing saves 17% |
| AIHumanizer Free | Free | 500 words a month, 80 words per input |
The bottom line
For a steady monthly volume, Walter Writes Starter gives the lowest price per word among the entry plans here. Phrasly is the flat option if your volume is unpredictable, but it has no free plan, only a $2 three-day trial.
To test before paying, start with the free plans at WriteHuman, StealthWriter or AIHumanizer, each with a small cap. The decision that matters is editorial: a humanizer shortens the time to a readable draft, and a person still checks what the draft claims.
For detection, see the AI detectors ranking and the free detectors list, which answer a different question.
Cite this: AIpresso, "Best AI Humanizers in 2026: Prices and Free Limits", October 2026.
Frequently asked questions
What is the best AI humanizer in 2026?
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