Telnyx adds ResembleAI voices for expressive, natural sounding speech

Voice quality can make or break your AI agent experience. Teams building conversational AI need voices that sound human, not robotic. Telnyx now offers ResembleAI voices, built on the Chatterbox model, delivering AI voices that preserve emotion, style, and accent for natural sounding delivery.

Where to Use It

ResembleAI voices are available across:

• Telnyx Voice API
• Voice AI Agents
• Standalone TTS API

Key Benefits

• Expressive delivery: ResembleAI voices preserve emotion, tone, and accent for conversations that feel natural
• Built on Chatterbox: Powered by ResembleAI's open source Voice AI model, known for expressive, human quality output
• Multiple integration paths: Use through Voice API for programmable control, Voice AI Agents for managed experiences, or Standalone TTS for direct synthesis
• Part of Telnyx TTS portfolio: Join ElevenLabs, Azure Neural HD, MiniMax, and Telnyx NaturalHD in our growing voice ecosystem

Global Infrastructure

Designed for speed and precision, the Telnyx TTS API delivers smooth, natural speech output that responds instantly. With dedicated GPUs across the US, EU and AU, performance stays fast, reliable and consistent at scale.

Available regions:

• NY, ATL (US-East)
• DEN (US-West)
• PAR (EU)
• SYD (Australia)

Getting Started (Voice AI)

1. Sign up or log in to your Telnyx Mission Control Portal account
2. Go to AI, Storage and Compute on the left hand menu
3. Create an AI Assistant
4. In voice settings, select a ResembleAI voice from the TTS provider options
5. Place a test call to validate

Getting Started (Voice API)

1. Sign up or log in to your Telnyx Mission Control Portal account
2. Obtain your API key
3. Set up and configure Voice API
4. Specify ResembleAI as your TTS provider in the speak command
5. Place a test call to validate

Read our developer documents to learn more: Voice API TTS | Standalone TTS