Fact · Languages and accents
10languages
Azure Speech's continuous language identification accepts up to 10 candidate languages, while its at-start mode accepts up to four.
Checked against its source on October 17, 2026
In the source's own words
“You can include up to four languages for at-start LID or up to 10 languages for continuous LID”
Implement language identification (Azure Speech, Microsoft Learn), Microsoft, Microsoft Learn, 2026, Candidate languages.
Open the original- What it measures
- The app supplies the candidate list itself, through an AutoDetectSourceLanguageConfig object, and expects at least one candidate to be in the audio.
- What it does not show
- The page states the limits of the API. It does not publish how often the service picks the right candidate.