Home › Case studies › Case 06
Case 06 · Language coverage
None of the top 10 leaderboard detectors submitted non-English results.
Every top-10 detector was calibrated on English. The multilingual world was left out.
The failure · on the record
The RAID leaderboard has 47 detectors. All 47 submitted scores on RAID-test (English). None submitted scores on RAID-extra (code, German, Czech). Turnitin’s 61% false-positive rate on ESL essays is the compliance crisis for every non-US-native institution. We publish signed non-English results by design.
The numbers
| English | German | Czech | Code | |
|---|---|---|---|---|
| Zhuque, MELD, Trinka, Grammarly, GPTZero | Yes | No test | No test | No test |
| Binoculars, FastDetectGPT (academic) | Yes | 0.51 AUC (RAID paper) | 0.51 AUC | Poor |
| Truth-in-AI | 0.97 (dmitva) | 0.99 (RAID paraphrase) | 0.998 (RAID paraphrase) | 0.97 (RAID paraphrase) |
What we do differently
Our signed RAID-extra artifact contains 30 configurations covering three non-English domains. Verifiable in-browser. Signed. Time-anchored.
Ship-ready for institutions serving non-native English writers today.
Proof
Verify each non-English row. Open the verifier →
Try it yourself
Score a German or Czech document.
curl -X POST https://api.trigeochiral.com/detect \
-H 'Authorization: Bearer $KEY' \
-d '{"text":"Ein deutsches Beispiel...","lang":"de"}'Bounty · put money where the claim is
$2,000
Per additional language you can prove we misclassify at scale. Publish the language, we accept the challenge.
Sources