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Telnyx Text-to-Speech (TTS) is now available as a standalone service

30, Oct 2025

We’ve expanded our Text-to-Speech capabilities to make the Telnyx TTS available as a standalone service, so you can generate lifelike speech in real time, independent of any telephony workflow. This new release lets developers use Telnyx, AWS Polly, and Azure voices through one simple API integration. Whether you're building a conversational app, accessibility feature, or interactive media tool, Telnyx delivers expressive, real-time speech generation with minimal latency.

Key benefits

  • One API for every voice:Access Telnyx, AWS Polly, and Azure Speech voices through a single, unified API. Simplify integration while expanding your options for tone, style, and language.
  • Global reach:Deliver natural, localized speech across 90+ languages and regional variants ,including English, Spanish, French, German, Arabic, Japanese, and more.
  • Low-latency performance:Optimized for real-time applications where speed and clarity matter, from conversational AI to dynamic media experiences. Use WebSocket or HTTP streaming to synthesize and play speech on the fly.
  • Dynamic voice control:Switch voices, accents, or tones mid-session to create adaptive, multi-speaker, or multilingual experiences.
  • Transparent, cost-efficient pricing:Simple per-character pricing across Natural, HD, and Neural tiers. Predictable, scalable costs with no hidden complexity.

Why it matters

Voice is becoming a core layer of digital interaction, from AI assistants and accessibility tools to global content experiences. The Telnyx TTS gives developers an easy, independent way to create lifelike, localized speech with low latency, 24/7 support, and effortless scalability.

Getting started

  1. Sign up or log in to your Telnyx Mission Control Portal account.
  2. Generate an API key for TTS API using the user icon on the right menu.
  3. Navigate to Real-time communication→ Voice →Settings →TTS Playground.
  4. Choose your voice vendor Telnyx, AWS Polly, Azure Speech or Elevenlabs
  5. Send text to synthesize via API command and receive an audio stream or file in real time.

Explore the Telnyx developer docs for detailed instructions and learn the pricing.