FREE
$0
Free tier — no expiration, no signup.
- 3 checks per day
- 1,000 words per check
- 2 of our 4 detection models
- Overall probability score
- English + Spanish
- Humanizer
- Sentence-level highlights
- All 4 models in parallel
- Share links without watermark
The AI Text Checker That Runs 4 Models in Parallel.
Paste any text. Get verdicts from 4 AI detectors. Know exactly what to fix.
No signup. 3 free checks a day.
Built on Cloudflare · 4 detection models · 7 languages
⚠ No detector is 100% accurate. We run 4 in parallel and show you which agree. How detection works →
How AICheckHub works
1. Paste or upload
Drop in any text up to 1,000 words on Free, or 5,000 on Pro.
2. Cross-check with 4 models
We run RoBERTa, Sapling, Gemini, and our internal classifier — all at the same time. You see each score.
3. Fix what they catch
Hit "Humanize" to rewrite high-AI sentences in one click, then re-check to verify.
Why 4 models, not 1?
Most AI detectors give you one verdict. That's a problem when detectors disagree — and they often do.
We run four detection models on every check. You see:
- Each model's individual score
- A divergence indicator (high or low agreement)
- Sentence-level highlights showing which sentences look most AI-like
When all 4 agree, you can trust the result more. When they disagree, we tell you — so you don't make a decision on a single coin-flip.
Simple pricing. No credit expiration.
PRO
$9.99 /monthor $79 /year (save 34%)
Everything in Free, plus:
- Unlimited checks (fair use)
- 5,000 words per check
- All 4 detection models in parallel
- Sentence-level highlights
- Humanizer included (200/day fair use)
- 7-day result history
- Share links — no watermark
- All 7 languages
- Email support (48h)
No credit card. Full refund through Stripe Customer Portal within 7 days.
LIFETIME
$39 one-time
Everything in Pro, with caveats:
- All Pro features
- Pay once, access for the lifetime of the product
- 50 checks/day and 50 humanizes/day (hard limits)
- No API access
- Major future features may require separate purchase
14-day full refund.
See full pricing, comparison, FAQ → /pricing
Frequently asked questions
How accurate is AICheckHub?
No AI detector is 100% accurate. Independent benchmarks put leading detectors at 76–88%. We run 4 models in parallel and show divergence so you can judge confidence yourself.
Do you store my text?
By default, no. Free tier deletes your text within 24 hours. Pro keeps it for 7 days for history and sharing (you can disable). API discards it after the call returns.
How is this different from GPTZero or ZeroGPT?
We run 4 detection models simultaneously (they each run 1) and include a humanizer in the same workflow. Plus your credits don't expire monthly.
Is the humanizer cheating?
It's editing. Same as a human editor smoothing out an AI-assisted draft. We don't support using it for academic fraud or to mislead anyone with a right to know.
Which languages do you support?
English and Spanish on Free. Pro and Lifetime get all 7: English, Spanish, French, German, Simplified Chinese, Japanese, Russian.
Do you offer a free trial of Pro?
Yes — 7 days, no credit card. Click "Start trial" anywhere on the site. After 7 days, your account stays as Free unless you add billing.
How does refund work?
Full refund through Stripe Customer Portal — within 7 days for Monthly, 14 days for Annual and Lifetime. Response within 48 hours. Details in our Refund Policy.
Can I integrate AICheckHub into my app?
Yes — see the API docs. One REST endpoint returns all 4 model scores. Free 100 calls/month, then $19/mo for 5,000 calls.