Vapi 集成 Cartesia Sonic 2.0：超真实语音 AI

Vapicon 2026 is coming

We're thrilled to announce our integration with Cartesia's Sonic 2.0 voice generation model, bringing the most realistic, controllable, and fastest voice AI to the Vapi platform.

By integrating Cartesia's Sonic 2.0 with Vapi's platform, we're enabling our users to create voice experiences that are indistinguishable from human conversation. This integration brings several key benefits:

🚀 Ultra-Realistic Voice Generation

Sonic 2.0 delivers voice quality that sets new benchmarks in the industry with its state space model architecture.

⚡ Industry-Leading Speed

With latencies as low as 40ms in turbo mode, your voice applications respond with virtually no perceptible delay.

🎭 Powerful Voice Customization

Access powerful new endpoints including voice changer for style perfection and infill for seamless audio editing.

🏢 Enterprise-Grade Reliability

Enjoy 99.9% uptime, fast latencies, SOC-2 and HIPAA compliance, plus support for on-premise and on-device deployments.

Integrating Cartesia Sonic 2.0 with your Vapi projects is straightforward:

Log in to your Vapi dashboard; Navigate to your assistant settings; Select "Voice" from the options menu; Choose "Cartesia Sonic 2.0" from the voice provider dropdown; Customize your voice settings according to your needs

Use Cases That Shine With Sonic 2.0

Customer Service

Create support agents that sound incredibly natural, with the ability to match brand voice and personality while handling complex customer interactions.

Healthcare

Develop accessible healthcare communication tools that convey empathy and clarity, essential for patient engagement.

Sales and Outreach

Build outbound calling solutions that establish instant rapport through natural-sounding voice interactions that respect conversation dynamics.

Looking Ahead

We're excited to see what our users build with these new capabilities. If you have questions about implementing Sonic 2.0 in your Vapi projects or want to share what you're creating, please reach out to our support team.

Table of Contents

How an in-house review bot cut our PR merge time in half

Fast decisions alongside voice AI: early experiments with Jev

Build vs. buy: what you're really deciding with voice agents

What makes a great conversational AI experience?

Why model flexibility matters in voice

Questions from the Anthropic and Vapi Webinar, answered.

Built for the Ear: Designing Conversations for Voice

How we Bootstrapped the Voice Agents on the Vapi Homepage

AGI is here. Why am I still on hold?

Introducing Vapi Monitoring

Vibe code voice agents

Your Voice Agents Need Tests. Now They Have Them.

GPT-5.1 Just Fixed the Thing That's Been Bugging Me for Years

Introducing Squads: Teams of Assistants

GPT-5 Now Live in Vapi

How we solved latency at Vapi

What Is Signal Processing? Voice AI Definition Guide

How to Use Grok 3 in a Voice Agent

Unpacking LLM Temperature

How to Build a GPT-4.1 Voice Agent

What Is Gemma 3? Google's Open-Weight AI Model

Introducing Vapi Workflows

What Are IoT Devices? A Developer's Guide to Connected Hardware

Building a GPT-4.1 Mini Phone Agent with Vapi

What Is GPT? Understanding A Core Technology for Voice AI

What is a Phoneme? An In-Depth Look for Technologists

Launching the Vapi for Creators Program

Introducing Vapi Voices

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