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These are the languages you can add to a Bolna agent. Each language also needs a transcriber and a voice that support it, and coverage varies by provider, so check the provider’s page before you pick one for a language.

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All supported languages

Use the code wherever a language is set in the API, for example the language field of the transcriber or the keys of multilingual_config.

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Languages with automatic detection

When an agent has more than one language, Bolna can detect mid-call that the caller has switched and follow them. Automatic detection is tuned for English and ten Indian languages: The other languages in the full list work on the platform, but mid-call auto-switching is centered on the eleven above. See How language switching works for how the agent decides to switch.

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Next steps

Set up a multilingual agent

Add languages, per-language prompts and voices to one agent

Voice and language settings

Pick a transcriber and voice for each language

Keywords and context

Help the transcriber recognize names and domain terms

Choose a transcriber

Compare speech-to-text providers by language