See your Turnitin reportbefore your professor does.See your Turnitin report
before your professor does.
We let you check your papers against turnitin™ before you submit, letting you see exactly what your teachers will see — ahead of time.
100%
Turnitin accuracy
5M+
papers checked
2 unique
reports per check
PDF, DOC, DOCX or TXT · Up to 50 MB
Your paper stays private. Never added to Turnitin's repository.Privacy guarantee — anonymous, never added to Turnitin's repository
5M+ papers checked
Money-back guaranteeAccuracy
The leading Turnitin checking service
Generic AI detectors train and grade themselves on generic AI model outputs. We train on real Turnitin results, and measure ourselves against one thing only: how closely our reports match what Turnitin shows your professor.
How often a detector labels each individual sentence the same way Turnitin does.
academi.cx99.8% accuracy
Sentences classified correctly25,762 / 25,820
Documents scored220
Copyleaks94.7% accuracy
Sentences classified correctly8,087 / 8,537
Documents scored80
Winston AI87.5% accuracy
Sentences classified correctly22,402 / 25,611
Documents scored220
Originality.ai85.3% accuracy
Sentences classified correctly22,020 / 25,820
Documents scored220
ZeroGPT83.7% accuracy
Sentences classified correctly20,989 / 25,068
Documents scored220
GPTZero77.7% accuracy
Sentences classified correctly18,289 / 23,538
Documents scored220
Sentence accuracy vs. Turnitin — documents that scored 0% AI on Turnitin
100%
Match vs. Turnitin Similarity
Similarity reports come directly from Turnitin itself — the exact score and matched sources your school sees.
99.8%
Accuracy vs. Turnitin AI flags
Our in-house detector is trained against real Turnitin AI reports to reproduce its flags, passage by passage.
5M+
Papers checked
Students at hundreds of universities check their work with academi.cx before they submit.
How academi.cx works

The same report your professor sees
We trained our proprietary AI classifier on over 300,000 real Turnitin reports. In nearly 100% of cases, we flag the exact same sentences that Turnitin does.
academi.cxAI Report56% AISame passages flagged. Same score. Before you submit.
What makes us different
We're not trying to be the most accurate AI detector. We're trying to show you exactly what Turnitin shows your teacher.
Other detectors give you their own score, but your professor only ever sees Turnitin's. A detector can say 2% while Turnitin flags 56%, and that 2% didn't help you. We built academi.cx to mirror Turnitin's reports, so the number you see is the number that counts.
300K+
Trained on real Turnitin reports
Unlike competitors, our classifier trained on over 300,000 real Turnitin reports. That's why our flags land on the same sentences Turnitin flags.
1:1
Similarity straight from Turnitin
Your similarity report comes directly from Turnitin, so the score and matched sources are exactly what your school sees.
∞
Unlimited checks
Subscribers can run unlimited AI checks and review their writing as often as they need.
Pricing
One free AI check per day on papers up to 350 words. Upgrade for unlimited AI checks and real Turnitin reports.
Free
1 check / day
Papers up to 350 words
- AI detection percentages
- Sentence-level AI highlights
- 24/7 support
- 1 upload per day
- 350 word limit
Pro
Most popularUnlimited checks
- All free plan features
- — Plus —
- Unlimited uploads
- Turnitin similarity reports
- Turnitin similarity percentages
- Advanced sentence heuristics
- Money-back guarantee
No card required for the free plan. Cancel Pro whenever you'd like.
FAQs about academi.cx
Can't find an answer? You can visit our help centre.
What is academi.cx?
academi.cx lets you upload academic documents to be checked for AI-generated and plagiarized content. Similarity reports are powered by Turnitin, and AI detection is powered by our in-house detector built to closely match Turnitin's AI flags.
Will my paper end up in Turnitin's database?
No. Your uploads are never added to Turnitin's global repository, so checking your paper here will not cause a false match when you submit it to your school later.
How accurate is the AI detection?
Our AI detector is tuned against Turnitin's AI writing detection and achieves up to 100% accuracy on clear-cut cases, with over 95% overall agreement.
How long does a check take?
AI results come back in a few seconds in most circumstances. Similarity checks can take up to 3 minutes depending on document length.
Is it anonymous?
Yes. Uploads are anonymous, and we don't share your documents or results with anyone — including your school.
What file types are supported?
PDF, DOC, and DOCX files are all supported. You can also paste in raw text, though you'll lose any formatting.



