Loved by students worldwide
Write like a human.
Every single time.
PenSmith reshapes AI text at a structural level — keeping your meaning, restoring your voice.
Bypasses✓GPTZero✓Turnitin✓Originality.ai✓Copyleaks✓ZeroGPT
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Try it now
No signup. One free try.
Paste anything. Watch it become yours.
pensmith.ai — Live Demo
0 / 1,200Input — AI Text
Output — Humanised
Your humanised text appears here...
How it works
Three steps. One voice. Yours.
01
Paste
Drop in any AI-generated text — essay, email, blog, anything up to 5,000 characters.
02
Humanise
Our model rewrites at the structural level: rhythm, syntax, cadence — not just synonyms.
03
Ship
Copy clean, human writing that bypasses every major detector. Confidence guaranteed.
Built to come back to
A writing practice that rewards you.
Daily streaks. Earned badges. Levels from Apprentice to PenSmith Sage. Your words become a quiet ritual — the kind you actually want to keep.
Start your streak →🔥
Current streak
7 days
Level 3
Wordsmith
450 / 800 XP
✦
🔥
◆
⌖
Badges earned
4 of 12
Pricing
Honest. Simple.
Start free. Upgrade only when you love it.
Up to 30% cheaper than Undetectable.ai for the same features.
MonthlyAnnual4 months free
Starter
$12
per month
10,000 words / mo
Undetectable.ai charges $19 for same words
- ✓Monthly reset
- ✓All 5 detectors
- ✓History saved
- ✓Cancel anytime
Payments coming soon
Most Popular
Pro
$24
per month
50,000 words / mo
- ✓Monthly reset
- ✓All 5 detectors
- ✓History & badges
- ✓Priority processing
- ✓XP & level system
Payments coming soon
Unlimited
$49
per month
250,000 words / mo
Power users & content teams
- ✓Hard cap 250k/mo
- ✓All 5 detectors
- ✓Full history
- ✓Priority support
- ✓API access soon
Payments coming soon
Cancel anytime · Switch to annual and save 33%
FAQ
Questions answered
Does it actually work on Turnitin?+
Yes. PenSmith rewrites at a structural level — varying sentence rhythm, word choice, and paragraph cadence — not just swapping synonyms. This defeats Turnitin's AI detection layer, which measures perplexity and burstiness.
Is my text stored anywhere?+
Free demo text is never stored. For logged-in users, only the first 100 characters of your text is saved as a preview in your history. The full text is never stored on our servers.
What happens when I run out of words?+
You'll see a warning at 80% of your limit. Once at your limit, you can upgrade instantly. Your word count resets on your monthly billing date automatically.
Can I cancel anytime?+
Absolutely. Cancel from your account page in one click. You keep full access until the end of your billing period — no extra charges, no questions asked.
Which AI detectors does it bypass?+
PenSmith is tested against GPTZero, Turnitin, Originality.ai, Copyleaks, and ZeroGPT. Our DeepSeek prompts are updated whenever any detector releases algorithm changes.
Why is PenSmith cheaper than Undetectable.ai?+
Undetectable.ai charges $9.99–$14.99/month for 10–15k words. PenSmith offers 10,000 words for $7/month and 50,000 words for $19/month — same quality, better value. We use DeepSeek's advanced model which delivers better results at lower cost.