AI Humanizer free plan and limits
AI Humanizer is free without an account: 1,000 words per run and 2,000 words a day, or 3,000 words a day with a free account, plus one AI score check a day. Daily words reset at midnight UTC. Paid plans start at $4.99 a month billed yearly ($9.99 monthly) and allow up to 5,000 words per run.
- No account
- 1,000 words per run, 2,000 words a day
- Free account
- 1,000 words per run, 3,000 words a day
- AI score checks
- 1 a day free; 50, 300 or 1,000 a month on paid plans
- Daily reset
- 00:00 UTC
- Input
- Paste or type text; headings, bold and links are kept
- Languages
- English, Spanish and Portuguese
- Paid plans
- From $4.99 a month billed yearly
- Refunds
- Within 7 days of your first payment, up to 5,000 words used
Free plan limits
| Limit | Without an account | Free account |
|---|---|---|
| Words per run | 1,000 | 1,000 |
| Words a day | 2,000 | 3,000 |
| Engines | Light and Standard | Light and Standard |
| Modes and reading levels | All four modes and levels | All four modes and levels |
| AI score checks | 1 a day | 1 a day |
| Rewrite a single sentence | Not included | Not included |
| History | Not stored | Not stored |
| Cost | Free | Free |
Without an account you may be asked to confirm you are human once every few hours. On days of very high demand, free rewrites can pause until the next day; paid plans are not affected.
What counts toward your daily words
- Humanizer. The words you paste. A 400-word essay uses 400 words, whichever engine you choose.
- Make It Longer. The words it writes, so doubling a 300-word paragraph uses about 600.
- Essay Checker. The words you check.
- Essay Title Generator. 50 words for each set of 10 titles.
- AI Detector. Counted separately: one check a day on the free plan.
- Failed runs. Not counted. If a rewrite fails, no words are used.
All tools share one daily total. When you reach it, the tool tells you how many words you have left; you can wait for the reset at 00:00 UTC, create a free account for 3,000 words a day, or choose a paid plan.
Paid plans
| Plan | Monthly | Yearly | Words | Words per run | AI score checks | Also includes |
|---|---|---|---|---|---|---|
| Basic | $9.99 | $59.88 ($4.99 a month) | 50,000 a month | 1,500 | 50 a month | Deep engine |
| Pro | $19.99 | $119.88 ($9.99 a month) | 150,000 a month | 3,000 | 300 a month | Deep engine, rewrite a single sentence, 30-day history |
| Unlimited | $39.99 | $239.88 ($19.99 a month) | Unlimited (fair use: 30,000 a day) | 5,000 | 1,000 a month | Everything in Pro |
Your text and privacy
- Free plan. Your text is sent to our humanizer engine to produce the rewrite and is not stored. We keep only a word count to apply the daily limit.
- Pro and Unlimited. Rewrites are kept for 30 days so you can find them again. Turn history off or clear it under History in your account.
- AI score checks. The text is sent to the third-party detector named next to the score. We keep only a count of checks.
Billing, cancelling and refunds
- Payment. By card through Stripe; Apple Pay and Google Pay work too. We never see or store your card number.
- Cancel anytime. From Billing in your account. You keep your plan and words until the end of the period you paid for.
- Refunds. Within 7 days of your first payment if you have used 5,000 words or fewer. Write to support@ai-humanizer.dev from the email on your account.
Frequently asked questions
Is AI Humanizer really free?+
Yes. Without an account you can humanize 1,000 words per run and 2,000 words a day. A free account raises that to 3,000 words a day. You never need a card for the free plan.
Do I need an account?+
No. Paste your text and press Humanize. An account only adds 1,000 more words a day, and you need one for a paid plan.
When does the daily limit reset?+
At 00:00 UTC every day. That is 8 pm in New York and 9 am in Tokyo during daylight saving time in the US.
What is the longest text I can humanize at once?+
1,000 words on the free plan, 1,500 on Basic, 3,000 on Pro and 5,000 on Unlimited. Split longer texts into parts; each part counts toward your words.
Is the Deep engine free?+
No. Deep is included in Basic, Pro and Unlimited. The free plan includes the Light and Standard engines with all modes and reading levels.
What happens when I run out of words?+
The tool shows how many words you have left. Free users can wait for the daily reset or create a free account; paid users can wait for renewal or change plan.
Do unused words roll over?+
No. Monthly words last until your next renewal. Yearly plans give the full year of words at once, valid until the end of the year you paid for.
Can I get a refund?+
Yes, within 7 days of your first payment if you have used 5,000 words or fewer. Write to support@ai-humanizer.dev from the email on your account.
Related pages
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