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Adding Models

Add Cartesia models to the AI Gateway and set up access in three steps.
1

Navigate to Cartesia Models in AI Gateway

In the TrueFoundry dashboard, go to AI Gateway → Models and select Cartesia.
Navigating to Cartesia Provider Account in AI Gateway

Navigate to Cartesia Models

2

Add Cartesia Account Details

Click Add Cartesia Account. Enter a unique account name and your Cartesia API Key. Optionally add collaborators so other users or teams can use this account. See Gateway access control for details.
Cartesia account configuration form with fields for API key and collaborators

Cartesia Model Account Form

3

Add Models

Click + Add Model and fill in the Display name, Model ID, and Model type.
Setup Cartesia account and manage models with ink-2 and sonic-3.5 model configuration

Setup Cartesia account and manage models

For Cartesia, the Model ID and Display name must be identical.

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Inference

Once models are added, use the Cartesia Native SDK to call TTS and STT endpoints. Code Snippet and Try in Playground Buttons for Cartesia models