Head to head · Humbot
Humbot vs Undetected AI: the word-limit math decides it
The short answer
Humbot and Undetected AI are both mainstream AI humanizers, and the deciding difference is volume. Humbot's entry plan carried 3,000 basic words a month when we checked in July 2026; Undetected.ai's Starter carries 15,000 for a similar price. Humbot is a fine pick for very light use, while anyone humanizing weekly content will exhaust its entry pool in days.
Last updated July 2026 · Pricing read off each vendor's own page
2 free runs a day, up to 200 words each. We save your run so you can get back to it, and a delete button appears with the result. See privacy.
This is our own AI-pattern score, measured here on sentence rhythm, template phrases, vocabulary variety and passive voice. It is not a GPTZero, Turnitin, Originality.ai, Copyleaks or ZeroGPT result, and it does not predict one. Worth knowing: we also ask the rewrite to vary sentence length, drop template phrases and prefer the active voice, so some of the drop is built in. Read the two panels below, not just the number.
Before ·
After ·
Meaning kept · Your own text rewritten · Saved to your history, delete any time
Humbot is one of the friendlier names in the humanizer category: clean interface, low headline price, and frequent promotional discounts. The catch sits in the word limits, and it is a big one if you produce content on a schedule.
This page compares Humbot and Undetected.ai on the numbers a buyer actually feels: words per month, price per word, what proof you get that the rewrite cleared the detectors, and where each tool honestly wins.
Verified pricing
Humbot vs Undetected.ai pricing
Humbot prices re-read first-party on humbot.ai/pricing on 2026-08-25, three identical loads, after the July reads were blocked. The page was running a back-to-school sale that day, so the annual rates below are promotional. Full breakdown on our Humbot review.
| Plan level | Undetected.ai | Humbot |
|---|---|---|
| Entry plan | Starter: 15,000 words/mo at $9/mo billed yearly ($12 monthly) | Basic: 3,000 basic + 1,000 advanced words/mo at $6.79/mo billed yearly ($10.19 monthly) |
| Volume plan | Pro: 80,000 words/mo at $19/mo billed yearly ($24 monthly) | Pro: 30,000 basic + 5,000 advanced words/mo at $8.49/mo billed yearly ($19.54 monthly) |
| Top plan | 250,000 words/mo at $39/mo billed yearly ($48 monthly) | Unlimited: unlimited basic + 10,000 advanced words/mo at $8.49/mo billed yearly ($50.99 monthly) |
| Free usage | Free account: 3 runs/day, 9,000 words/mo; the on-page demo runs twice a day with no account | Small free allowance |
Prices change and promos expire. Always confirm on each vendor's pricing page before buying.
Side by side
What each tool actually does
A fair look at where each one wins. Both are capable humanizers; the fit depends on your volume and workflow.
| What matters | Undetected.ai | Humbot |
|---|---|---|
| Entry-plan words per month | 15,000 words | 3,000 basic + 1,000 advanced words |
| Price per 1,000 words, entry plan | About $0.60 billed yearly | About $1.70 billed yearly across the 4,000-word combined pool |
| What you see after the rewrite | Our AI-pattern score before and after, with the reasons behind it | Returns humanized text with a pass claim |
| What one pass does | Rewrites the properties these tools measure, and shows our own score before and after. No claim about their verdicts | Markets coverage of the major detectors |
| Promotional pricing | Flat published prices, no countdown timers | Frequent promo discounts; the price you see may be temporary |
| Best suited for | Steady weekly or daily content volume | Occasional, light humanizing |
The word-limit math, in plain numbers
A typical humanized blog post runs 1,000 to 1,500 words. On Humbot's entry pool of 3,000 basic words, that is two posts a month before the meter stops. Undetected.ai's Starter pool of 15,000 words covers ten to fifteen of the same posts.
Per thousand words, the gap is wider than the headline prices suggest: roughly $0.60 on Undetected.ai's Starter billed yearly versus about $2.00 or more on Humbot's promo-priced entry plan. Low sticker price and low cost are not the same thing in this category; the word pool decides which one you actually get.
Promo pricing vs published pricing
When we checked Humbot's pricing page, the figures were promotional: a struck-through price with a discount applied. Promos are fine, but they make budgeting a subscription harder, because the renewal price and the sign-up price may not match.
Undetected.ai publishes flat prices: $9, $19, $39 a month billed yearly. What you sign up at is what you renew at. For an individual buyer this is a small point; for anyone expensing the tool it is the difference between a predictable line item and a surprise.
Where Humbot is genuinely the better pick
Humbot's interface is genuinely simple, the free allowance lets you sanity-check output quality before paying, and if you humanize a couple of short pieces a month the small pool is not a real constraint. It also offers an API.
If that is your usage pattern, Humbot's discounted entry price is hard to argue with. The comparison only tips hard toward Undetected.ai once your volume is weekly rather than occasional, which is exactly when the per-word math starts to dominate.
The honest split
Who should pick which
Pick Undetected.ai if
- You publish weekly or daily and need five figures of words every month
- You want a score that names what it counted, not a bare pass claim
- You want flat published pricing with no promo expiry
Pick Humbot if
- You humanize one or two short pieces a month
- You want a small free allowance to test output first
- The current promo price fits a tight budget
No tool wins every workload. Test both on your own text before committing to a year.
Good questions
Humbot vs Undetected.ai, answered
Keep comparing
More head-to-head comparisons
Undetectable AI vs Undetected AI
Undetectable AI vs Undetected AI: 2026 Comparison
vs WriteHumanWriteHuman vs Undetected AI
WriteHuman vs Undetected AI: Honest 2026 Comparison
vs QuillBotQuillBot vs Undetected AI
QuillBot vs Undetected AI: Paraphraser or Humanizer?
vs Walter Writes AIWalter Writes AI vs Undetected AI
Walter Writes AI vs Undetected AI: 2026 Comparison
vs Netus AINetus AI vs Undetected AI
Netus AI vs Undetected AI: Pricing and Words Compared
vs TwixifyTwixify vs Undetected AI
Twixify vs Undetected AI: Pricing and Words Compared
Full roundupBest AI humanizer
Every major humanizer compared in one honest table, with verified pricing.
Further reading: Humbot review: every plan priced, and the tier that costs the same for less · Why writers switch from Humbot · How much does an AI humanizer cost? · Humanize AI text without losing your meaning
Try Undetected.ai on your own text
Paste your own text and read the rewrite next to the original, with our AI-pattern score measured on both before you copy.
Meaning kept · Your own text rewritten · Saved to your history, delete any time