Multilingual analysis

The API supports 16 languages. English uses a dedicated scoring pipeline tuned on English audio. Other languages run through a separate multilingual pipeline.

Supported languages

Code	Language
en	English (default)
es	Spanish
fr	French
de	German
pt	Portuguese
it	Italian
nl	Dutch
hi	Hindi
zh	Chinese
ja	Japanese
ko	Korean
ar	Arabic
tr	Turkish
pl	Polish
ru	Russian
sr	Serbian

Requesting a non-English analysis

Pass the ISO 639-1 code in the language form field:

curl -X POST "https://platform.zenhire.ai/api/v1/speech/analyze" \
  -H "X-API-Key: zh_api_…" \
  -F "audio=@entrevista.mp3" \
  -F "language=es"

Enabling multilingual on your account

Non-English analysis is gated behind a permission. If your account doesn't have it enabled, you'll get:

403 MULTILINGUAL_NOT_ENABLED

Contact your ZenHire account manager to enable it. English (en) is always available without the flag.

Quality differences

The English pipeline has seen the most tuning and benchmark validation. The multilingual pipeline is optimized for broad language coverage, so its behavior isn't identical to the English pipeline. For cross-language comparisons (e.g., ranking candidates across different languages against one another), build in a review step — don't assume scores are directly comparable across language codes.

See in the API reference

• POST /api/v1/speech/analyze — see the language form field and MULTILINGUAL_NOT_ENABLED error
• GET /api/v1/speech/analyze/{id} — see the audio.requestedLanguage field in the response