Adding and managing supported languages for AI agents

If your customer base speaks multiple languages, you can add languages to your AI agent so that it responds to your customers in the right language. You must add and activate a language to your AI agent before it can begin responding to customers in that language.


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This article does not apply to customers who
bought AI agents - Advanced before March 10, 2026. See this article instead.
If your customer base speaks multiple languages, you can add languages to your AI agent
so that it responds to your customers in the right language. You must add and activate a
language to your AI agent before it can begin responding to customers in that language.
This article contains the following topics:

Viewing all supported languages
Adding a supported language to an AI agent
Activating a supported language
Deleting a supported language

Related articles:

Best practices for expanding language support for
AI agents
Translating replies for AI agents
Configuring multi-language support for voice AI
agents



Viewing all supported languages

You can view all the languages that an AI agent is currently capable of using during
conversations with customers.
To view all supported languages


In the AI agents workspace, select the AI agent you want to work
with.

Click
Settings in the sidebar, then select Languages. The Languages page shows you which languages the AI agent supports.
The page is broken into two sections:


Automatic translations: For these languages, the AI agent’s
system replies and dialogues are
automatically translated by AI. For a full list of available
languages, see Languages supported by AI
agents.

Manual translations: For these languages, you must manually
supply translations. See Translating replies for AI
agents.

The Status column shows you whether a supported language is:


Active, meaning it can be used in conversations. Once added,
languages with automatic translations are always active.

Inactive, meaning it can't yet be used in conversations.
Languages that require manual translations must be manually
activated.








Adding a supported language to an AI agent

When you created your AI agent, you selected its
default language. You can't change its default language, but you can add more
supported languages.
Adding a supported language to an AI agent means it can use that language (once activated) to respond to
customers during conversations. For dialogue-based responses, an active reply must also exist for that
language.
To add a supported language


In the AI agents workspace, select the AI agent you want to work
with.
Click
Settings in the sidebar, then select Languages.
Click Add language.
In Language, select the language you want to add. This list is
split into two sections:


Automatic translations available: For these languages, the AI
agent’s system replies and dialogues are
automatically translated by AI. For a full list of available
languages, see Languages supported by AI
agents.

Manual translations only: For these languages, you must
manually supply translations. See Translating replies for AI
agents.


(Recommended) If you selected a language with automatic translations
available, select Use automatic translations for this
language.

(Optional) If you selected a language for which automatic translations
aren't available, or if you don't want to use automatic translations, select
Duplicate replies from another language. This option is useful
for AI agents that already have well-built replies in another language
that can be translated and reused in the language you’re
adding.
For AI agents that don’t have reusable replies, such as
brand-new AI agents, keep this option deselected.

In Select language to duplicate, select the language you want
to copy replies from.



Click Add. Your language is added.



If you selected automatic translations, the language is automatically activated. You
can view the translations for each dialogue
from within the dialogue builder.
If you selected manual translations, you must activate the language before the AI
agent can use it in conversations with customers.



Activating a supported language

If you added a supported language that requires manual translations, the language
must be activated before an AI agent can use that language to respond to customers.
Activating a language publishes all active replies for that language, so make
sure those replies are ready to be seen by customers before you do this.
Languages with automatic translations can't be deactivated, only deleted.
To activate a language


In the AI agents workspace, select the AI agent you want to work
with.
Click
Settings in the sidebar, then select Languages.
Under Manual translations, find the language you want to activate, click the
options menu ( ), and select Activate.
The language's status
changes to Active.






Deleting a supported language

You can delete a supported language if you no longer want your AI agent to be able to
converse with customers in that language. When you delete a language, all replies
and templates in that language are also deleted. However, historical data in the
reporting dashboard and conversations logs are retained.


Important: When you delete an AI agent, the
deletion of its associated replies and templates is permanent and cannot be
undone. You can re-add a supported language, but you cannot recover the deleted
replies and templates.

To delete a supported language


In the AI agents workspace, select the AI agent you want to work
with.
Click
Settings in the sidebar, then select Languages.
Find the language you want to delete, click the options menu ( ), and select Delete.
In the confirmation dialog, type the name of the language and click
Delete.





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