Accuracy you can audit.
A blinded comparison of Opalite and certified medical interpreters. Three languages. Real clinical dialogue.
90%+
fewer errors than certified medical interpreters
fewer major and critical errors
than certified interpreters
Evaluated in Spanish, Mandarin, and Cantonese
In collaboration with
Oral presentation · PAS 2026Pediatric Academic Societies Meeting
Study design.
The study evaluated interpretation accuracy in Spanish, Mandarin, and Cantonese.
Blinded comparison
Head-to-head against three certified medical interpreters per language.
Real clinical dialogue
Evaluated by physician-researchers.
Every error counted
Omissions, substitutions, and distortions were scored for clinical severity.
Far fewer errors in every language.
Total interpretation errors in a blinded evaluation: Opalite against three certified medical interpreters per language.
Spanish
p = .01198–99%fewer errors
Mandarin
p = .00595–96%fewer errors
Cantonese
p = .01895–97%fewer errors
Opalite made too few errors to categorize.
Here is what the certified medical interpreters missed.
Certified medical interpreters
Their errors clustered in two categories:
- Information omissions
- 44%
- Medical terminology errors
- 20%
Opalite
The few errors Opalite made showed no single dominant type.
Weighted for clinical severity, the gap widens.
Researchers also graded each error as minor, major, or critical to assess clinical severity. Opalite had fewer major and critical errors and lower severity-weighted scores across all three languages.
98%+
fewer major and critical errors than certified interpreters
0
major or critical errors in Spanish or Cantonese
| Language | Opalite | Certified interpreters |
|---|---|---|
| Spanishp = .007 | 1 | 206–279 |
| Mandarinp = .007 | 10 | 490–636 |
| Cantonesep = .038 | 4 | 207–431 |
Points per error: minor ×1 · major ×5 · critical ×10.
Chosen first every time by blinded clinicians.
A seven-domain blinded quality survey, scored on a 10-point scale. Certified-interpreter ratings are shown as means.
Spanish
p = .0379.0 / 10
Opalite quality rating
Mandarin
p = .0349.0 / 10
Opalite quality rating
Cantonese
p = .0109.0 / 10
Opalite quality rating
The full study is available.
We walk your clinical team through the method, the error taxonomy, and the results.
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