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An agent can speak more than one language. Each language has its own system prompt, welcome message, final response, and pipeline. One language is the Primary.

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Add or remove languages

1

Open Manage Languages

On the Agent or Pipeline tab, open the language selector (for example English (Primary)) and select Manage Languages.
2

Select languages

Search or filter by Country, and select the languages you need. Use Make Primary to change the primary language.
3

Apply

Select Apply. For each new language, the builder:
  • Sets up a default pipeline, if default models exist for that language.
  • Translates the system prompt, welcome message, and end-call final response from your existing content.
You can’t remove the primary language. Make another language primary first.

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Edit per language

Use the language selector at the top of the Agent or Pipeline tab to choose which language you’re editing. Settings shared by all languages, such as VAD and interruptions, aren’t affected by the selector. If a language has no default models, pick its models manually on the Pipeline tab. Until you do, the draft shows an error and can’t be committed.