HumanPen vs WriteHuman: no length cap, versus a real free tier
These two trade off against each other cleanly. One lets you try properly before paying; the other has no ceiling on how much it will process at once.
Competitor details verified 2026-08-01. Their own site is the authority.
The short answer
WriteHuman has one of the more genuine free tiers in the category - 3 requests a month at 250 words, recurring rather than a one-off trial - so it is easy to try. But it caps words per request, so a long paper still has to be split. HumanPen has no per-request limit and works on the DOCX directly, at the cost of having no genuinely usable free tier.
Side by side
| HumanPen | WriteHuman | |
|---|---|---|
| Input | Upload DOCX / PPTX | Paste text |
| Output | Editable DOCX / PPTX | Plain text |
| Per-request word cap | None | 600 / 1,200 / 3,000 words by tier |
| Free tier | 100 credits (1,000 words), once | 3 requests x 250 words, every month |
| Billing | Metered credits, never expire | Monthly subscription ($12 / $18 / $36 annual) |
| Detection report import | Turnitin / iThenticate | None |
| Built-in detector | None | Yes |
| Rewrite languages | English only | Multiple |
When to pick WriteHuman
- You want to use it free for a while before deciding. Their free tier recurs monthly; ours is a one-time 100 credits.
- You want an instant score after rewriting. They bundle a detector. We do not - our approach is importing the report your institution issued, which helps once you have one but is less convenient for a quick self-check.
- Your text is short anyway. If your pieces run a few hundred words, the per-request cap never binds and our advantage does not exist for you.
- You need a language other than English.
On HumanizerBench, and where we stop
WriteHuman operates the HumanizerBench leaderboard and discloses this on every page of that site. In the July 2026 cycle, WriteHuman ranked first overall.
We mention it without implying anything. Every input sample, humanized output, raw verdict from all five detectors, and the scoring script are open on GitHub and locally reproducible, and a commit-reveal scheme stops participants pre-tuning against upcoming prompts. Mechanically it is the best public head-to-head data in this category.
We are not on that leaderboard - it requires a self-serve paste-text interface and an entry-level monthly plan, and we are file-upload with metered credits. So we have no head-to-head data against WriteHuman, and we will not invent one here.
Our free tier is genuinely worse than theirs. If your standard is "try it free until satisfied, then pay", that is a disadvantage and there is no arguing it away. Our shape wins in one situation: a complete, formatted, reasonably long document.
FAQ
Why are you not on HumanizerBench?
It requires a self-serve paste-text interface and an entry-level monthly plan. We are file-upload with metered billing, so we do not currently meet the entry conditions.
So how effective are you?
We have no third-party head-to-head data, so we will not give you a number. The honest advice is to try it on your own writing - the 100 credits at signup cover a full section of real body text.
Why is your free tier so much smaller?
Our per-job cost is higher: we process a whole document, protect formatting and citations, and hold context across slices. Giving away a full paper is not viable. 100 credits (1,000 words) is enough to judge rewrite quality.
Can I use both?
Yes. Short text there, long documents here, is a reasonable split.
The only comparison that settles it is your own document
New accounts get 100 credits - enough to run a full section of your own writing through and judge the result yourself.
Try it on your document