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TTS Router

One API for leading voice engines. Access ElevenLabs, Rime, MiniMax, Resemble AI, and others without lock-in. Edge-hosted on Telnyx infrastructure means zero network hops between synthesis and delivery.

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Every TTS engine has trade-offs

  • ElevenLabs locks you into one provider

    ElevenLabs delivers exceptional voice quality but you're locked to their models with no engine flexibility. Built for content creation, not real-time Voice AI. No telephony integration means your synthesis and delivery run on separate infrastructure, adding network latency to conversational applications.

  • Vapi orchestrates, doesn't host

    Vapi offers provider choice through orchestration but requires external API calls to TTS providers. Every synthesis request traverses the internet to reach external TTS services. You're dependent on multiple vendors' uptime with no control over the infrastructure chain.

  • Retell routes to external APIs

    Retell provides TTS provider flexibility through external API routing but adds network latency to every synthesis call. Your voice synthesis happens outside their platform on third-party infrastructure. Multiple vendor dependencies create potential points of failure in your voice pipeline.

ROUTER BENEFITS

Why TTS Router works differently

TTS Router eliminates the trade-offs that force you to choose between voice quality, latency, cost, and engine flexibility. Our platform gives you access to every major TTS engine through unified infrastructure designed specifically for Voice AI applications.

Switch between TTS engines via configuration, not code rewrites. Access ElevenLabs, Rime, MiniMax, Resemble AI, Inworld, Azure, and AWS through one API. Future-proof your voice stack as better engines emerge.

TTS runs on Telnyx edge infrastructure in the same facilities where your calls terminate. No internet round-trips to external APIs. Audio synthesized where it's delivered.

Choose from 1,300+ voices across over 100 languages and variants. Deliver localized experiences that resonate with customers worldwide, improving engagement and reducing language barriers in Voice AI interactions.

Eliminate latency by processing voice synthesis at the point of delivery. Your latency equals processing time, not network time. No dependency on external provider uptime.

Explore your TTS options

The right voice for every experience

Telnyx gives you access to a wide range of voices through one API. Choose from multiple providers and tiers to balance quality, tone, and cost for every interaction, giving you added flexibility to match each use case perfectly.

  • Telnyx Voices

    Reliable and budget-friendly. Best for high-volume prompts, IVR menus, and day-to-day status updates.

  • Telnyx NaturalHD

    Great balance of quality and value. Crisp delivery, refined prosody, and disfluency handling (like “um” and “uh”).

  • Telnyx Ultra

    Telnyx Ultra is a premium text-to-speech model that generates expressive speech across 42 languages.

  • Neural Voices (AWS, Azure)

    Clarity with expressive tones and wide language coverage. Ideal for brand-forward, or multi-speaker flows.

  • Azure Neural HD

    Highest fidelity for the most nuanced voice interactions. Best for multilingual customer journeys.

  • Elevenlabs

    Highly expressive, creator-grade voices. Ideal for high-quality agent responses, narration-in-app, and multi-voice experiences.

  • MiniMax

    Natural clarity with premium detail. Built for real-time scenarios where subtlety matters like live support, interactive narration, and voice-first apps.

  • ResembleAI

    Emotion-rich voices that preserve tone, style, and accent. Ideal for experiences where natural tone and accent matter.

  • Rime

    Ultra-low latency synthesis with seamless code switching between languages. Optimized for live conversations where every millisecond and language transition matters.

  • Inworld

    Professional voice actor-quality audio with exceptional performance. Flexible model options to optimize for quality or speed. Native-speaker quality across multiple languages with significant cost savings over other TTS providers.

0Network hops between synthesis and delivery with edge-hosted processing

1,300+Voices across leading engines with regional accents and language variety

1API replaces multiple TTS integrations with unified synthesis interface

PRODUCT CAPABILITIES

What's under the hood?

TTS Router transforms text-to-speech from a vendor management headache into a single API call. Built for Voice AI teams who need production-grade synthesis without the latency penalty of external APIs or the risk of single-engine lock-in.

  • Leading engines in one API

    Access ElevenLabs, Rime, MiniMax, Resemble AI, Inworld, Azure, and AWS through a single integration. 1,300+ voices across 10+ languages with regional accents. Switch engines with configuration, not code rewrites.

  • Edge-hosted synthesis

    TTS runs on Telnyx edge infrastructure in the same facilities where your calls terminate. No internet round-trips to external APIs.

  • Zero network hops

    Audio synthesized where it's delivered. Latency equals processing time, not network time.

  • Voice AI optimized

    Built for real-time Voice AI, not content creation. Sub-second synthesis with carrier-grade delivery.

  • Future-proof architecture

    New engines added as they emerge. Access better voices without rearchitecting your stack.

  • One vendor, one bill

    Part of the complete Voice AI platform alongside PSTN, numbers, STT, inference, and compute.

  • In-region compliance

    Voice data processed locally in US, EU, Australia, and other regions with SOC 2, HIPAA, PCI DSS, GDPR certifications.

Explore our growing library of voices across providers

Discover authentic accents and context-aware pronunciation from ElevenLabs, Rime, MiniMax, Resemble AI, and more that reflect your users' native sound

See the full list EXPLORE VOICE LIBRARY
USE CASES

Power assistants, apps, and automations with TTS

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    AI companions and virtual agents

    Use text to speech to give chatbots and AI agents a natural voice that responds instantly to users.

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    Accessibility

    Use real-time text-to-speech to read on-screen content, notifications, and messages aloud for people who can’t easily read them.

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    Customer kiosks and self-service

    Use text-to-speech to speak prompts and instructions on kiosks in retail stores, airports, and airline check-in so customers can follow each step without confusion.

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    Meditation, wellness, and content apps

    Use text-to-speech to generate guided sessions, affirmations, or long-form audio from text instead of recording voiceovers.

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    Read-aloud content

    Use real-time text-to-speech to turn any on-screen text like articles, PDFs, emails, or app content into audio so people can listen instead of read.

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    Multilingual communication

    Use text-to-speech to vocalize translations in different languages so people can hear information in their preferred language and accent.

Ready to future-proof your TTS stack?

Plug Telnyx TTS into your product with one API and start streaming high-quality voice in real time. Keep full flexibility on pricing and providers.

Get API keyExplore docs

FAQ

A text-to-speech API that provides access to leading TTS engines through one integration. Built for Voice AI applications that need production-grade synthesis without the latency penalty of external API calls or vendor lock-in.

A text-to-speech API that provides access to leading TTS engines through one integration. Built for Voice AI applications that need production-grade synthesis without the latency penalty of external API calls or vendor lock-in.