Managed Agents at Previously $0.06 $0.03/minManaged Agents are Previously $0.06 $0.03/min.

ServiceNow#1 on EVA-Bench

Artificial Analysis#1 on Speech Agent Arena

AI voice localization for your next audience.

Turn localized scripts into speech with Sonic. Find a voice for each audience and listen to regional accents.

Start buildingTalk to sales

Multilingual narration and support workflows

Create spoken campaign copy, training material, support responses and product guidance, reviewed for each audience.

Generate spoken versions of approved campaign copy. Choose a voice and accent for the audience, then review the delivery in context.

Find the voice for each audience.

Listen to language and accent examples, then test your translated script with the voice you plan to use.

American English, 3 voices

American EnglishAmerican English

Most popular locales

Explore 44 languages

Built on best-in-class speech models

Cartesia handles listening, turn-taking and interruptions. You bring the instructions, the LLM and the tools.

  • $0.03per minute
  • #1on Speech Agent Arena and EVA-Bench
  • 24/7answers every call, at any hour

Natural turn-taking

The agent lets callers finish, handles interruptions and pauses, and never talks over anyone.

Your choice of LLM and tools

Pick the LLM that is best suited for your agent's job, and give it tools to take action.

A voice that fits your brand

Pick from a library of natural, expressive voices so every call sounds like your company.

Live in three steps

Start building

  1. Clone the template

    Copy this use case into your Cartesia account and edit the instructions to match your policies.

  2. Connect your systems

    Connect the agent to the systems it needs, then give it a Cartesia phone number or bring your own.

  3. Test the agent, then go live

    Place test calls from the browser, read the transcripts, and score calls with your own metrics.

Enterprise-grade securityFrom Cloud to Local.

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    HIPAA compliant

  • SOC 2 Type 2 badge

    SOC 2 Type 2

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    GDPR

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    PCI

Localization FAQs

Does Sonic translate the script for me?

Sonic generates speech from the text you provide. Translate and review your script before synthesis, or connect a separate translation step in your application.

How do I choose a voice for each market?

Start with the language and regional accent your audience uses. Listen to examples, then test your own script with a fluent speaker before publishing.

Can I use the audio in training or product experiences?

Sonic can generate speech for narration and applications. Review the applicable terms and voice permissions for your intended use.

Does voice localization include video dubbing?

Speech generation is one part of a dubbing workflow. Translation, timing, speaker mapping, and combining the audio with video require additional steps.

Where can I check language coverage?

The Cartesia language directory lists available languages and voice examples. Check the coverage of the model you plan to use before starting production.

What is the difference between translation and voice localization?

Translation creates text in another language. Voice localization also considers how that text sounds to the audience, including pronunciation, accent, pacing, and context. Sonic generates speech from the script you supply.

How can we keep terminology consistent across locales?

Maintain reviewed scripts and a terminology list for each locale. Generate samples containing product names and difficult terms, have fluent reviewers check them, and reuse approved choices when updating the content.

Can we update only part of a localized recording?

You can generate speech for revised text and incorporate it into your production workflow. Check the voice, pacing, and edit points against the existing audio so a partial update sounds consistent.

Find your voice

Talk to an expert.

Connect with a member of our team and learn how Cartesia can help you build world-class voice experiences.

Contact Sales

Start building.

Access our models via API and bring an agent into production with our SDKs and developer tools.

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