grok

XAI: Grok TTS 1.0

x-ai/grok-tts-1.0
Context

4K

Input

text

Output

audio

Tool calling

Not listed

OverviewProvidersPricingBenchmarksAPI and quickstartReviews

About this model

Grok TTS 1.0 is xAI's text-to-speech model designed for expressive, multilingual, and low-latency speech synthesis. It supports natural-sounding speech generation with built-in and custom voices, fine-grained delivery control through speech tags, pronunciation control using IPA and phrase replacements, adjustable speaking speed, and character-level timestamps. The model supports both batch and real-time streaming synthesis and can produce high-fidelity audio as well as telephony-optimized output, making it suitable for voice agents, narration, conversational applications, accessibility, call-center systems, and other production speech-generation workloads.

Compare Text-to-Speech ModelsCompare Audio Models

Input modalities

text

Accepted as model input

Providers

Available routing options for this model through OneInfer.

grok
Available

Text to speech

$15.000 / 1M characters

Routing

OneInfer optimized

Pricing

Current OneInfer pricing for this model.

UsagePrice
Text to speechTTS$15.000 / 1M characters

Performance & Benchmarks

Independent evaluations and live cluster operational metrics

We haven’t measured this model yet.

API Guide

API docs
  1. 1

    Generate your access token

    Use your API key to generate the JWT access token required by the Models API.

  2. 2

    Add the JWT token

    Copy the generated JWT token and replace JWT_TOKEN in the example below.

  3. 3

    Check your credits

    If your balance is too low, before calling the model.

  4. 4

    Run the API example

    Choose your preferred language, copy the example, and send your first model request.

    curl -X POST https://api.oneinfer.ai/v1/ula/generate-audio \
  -H "Authorization: Bearer YOUR_JWT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
  "provider": "grok",
  "model": "x-ai/grok-tts-1.0",
  "prompt": "OneInfer makes AI inference simple.",
  "stream": false,
  "voice_id": "English_expressive_narrator",
  "format": "mp3"
}'

Community Model Reviews & Ratings

Verified visitor & developer evaluations on XAI: Grok TTS 1.0's real-world intelligence, code accuracy, and speed

4.8
Community consensus rating
Top Community Consensus Tags:
Be the first to rate and tag this model's coding and reasoning strengths!

No community reviews yet

Be the first to share developer feedback on XAI: Grok TTS 1.0's latency, code accuracy, and reliability in production.