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"

Availability

Multilingual analysis is enabled by default on every account — there's no separate flag to request and nothing to turn on. Any account with Speech access can submit a non-English language code and get scored results back. English (en) is the default when no code is passed.

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
• GET /api/v1/speech/analyze/{id} — see the audio.requestedLanguage field in the response