Vapi 上线 Deepgram Aura-2：面向企业语音 AI 的最自然 TTS

Vapicon 2026 is coming

Aura-2, Deepgram’s newest text-to-speech model, is now live on Vapi.

Whether you’re building outbound sales agents, AI-powered IVRs, or real-time healthcare assistants, Aura-2 delivers the voice quality, pronunciation accuracy, and latency performance you need.

Most TTS models today sound impressive, but the small things give them away. Unnatural pacing, awkward pauses, or subtle mispronunciations still make them feel robotic, especially in high-stakes, real-world interactions.

Why Aura-2 Is Different

Unlike traditional TTS models that are trained on clean scripts or narration, Aura-2 was trained on human-to-human conversational data. The result? Voices that respond like people—with context, tone, and intent.

🧪 Enterprise-First Testing Approach

Aura-2 was evaluated across real-world domains like healthcare, finance, logistics, and support. It’s built to perform where precision matters most.

📈 Pronunciation Accuracy that Scales

From alphanumerics to drug names and complex brand terms, Aura-2’s pronunciation engine has been fine-tuned for reliability, especially in verticals where clarity is non-negotiable.

⚡ Real-Time, Low-Latency Performance

With time-to-first-byte under 150ms, Aura-2 supports smooth, conversational experiences at scale. Perfect for dynamic use cases like sales calls or appointment scheduling.

🧠 Expressive, Context-Aware Speech

Human-like pauses, emotional tone, and adaptive pacing make Aura-2 feel like a real person, not just a text reader.

Use Cases We’re Seeing

Voice agents for customer support and sales; AI front desks and healthcare scheduling; Interactive voice menus and automated fulfillment; Internal productivity bots with a human touch

If you’re already on Vapi, switch your TTS provider to deepgram-aura-2 in your config. No extra integration work needed. You can start making calls with Aura-2 today.

Using your own Deepgram credentials? You’re good to go as long as you’re on their latest API version.

P.S. Yes, Aura-2 pauses correctly before saying “1-844-HEY-VAPI.” It even makes it sound friendly. 🎧

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

Vapi x Cartesia: Ultra-Realistic Voice AI with Sonic 2.0

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