// AI detectors
CNKI AIGC check
The official CNKI personal service – beware of look-alike sites.
official sources onlychecked 2026-10-26
⚠ AI detection can misjudge. AI detection may misjudge; follow your school’s rules on how AIGC results are used.
01At a glance
| Official link | https://cx.cnki.net/ |
|---|---|
| Made by | 中国知网 CNKI |
| Free? | Paid per check (price shown after login – check the official page). |
| Paid | See the official page after login. |
| Languages | Chinese (aimed at Chinese academic writing); others: check the official page. |
| Files | Check the official page. |
| Limits | Check the official page. |
| Best for | Chinese university students and researchers whose school uses CNKI. |
02How to use it
- Open cx.cnki.net (the official CNKI personal checking service).
- Register / log in and choose “AIGC Check”.
- Upload and pay as shown on the page.
03Accuracy
No official accuracy figure found on the public page.
Independent evaluations:
- Weber-Wulff et al. (2023), “Testing of detection tools for AI-generated text”, International Journal for Educational Integrity — 14 tools tested (12 public + Turnitin and PlagiarismCheck): all scored below 80% accuracy and only 5 above 70%; the authors conclude the tools are “neither accurate nor reliable”. False positives ranged from 0% (Turnitin) to 50% (GPTZero) on their test set; machine paraphrasing cut accuracy to 26%. English texts, tested in 2023 – tools have changed since.
- Liang et al. (2023), “GPT detectors are biased against non-native English writers”, Patterns — Several widely used GPT detectors “consistently misclassify non-native English writing samples as AI-generated, whereas native writing samples are accurately identified”; simple prompting can also bypass them. The authors caution against using detectors in evaluative or educational settings.
04FAQ
FAQ
Where is the official CNKI AIGC check?
cx.cnki.net – CNKI’s personal checking service, which lists “AIGC Check” alongside plagiarism checking. Beware of third-party sites using the CNKI name.
Can CNKI AIGC check be wrong?
Yes – AI detection can misjudge. AI detection may misjudge; follow your school’s rules on how AIGC results are used.
05Official sources
Checked against these pages on 2026-10-26; the official page wins if anything differs.