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Grok TTS — and what?

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 1 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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Grok TTS
xai/grok-tts
Provider
xAI
Family
Modality
audio-tts
Context window
Max output
Released
2026-06-03
License
Proprietary
Per 1K chars
$0.015 /1K ch
Tools
Streaming
Vision
JSON mode
Reasoning
Prompt caching
Batch API
Try it
View model →
Grok TTS
xai/grok-tts
Full spec →

xAI's Grok text-to-speech model. Generates high-fidelity spoken audio in 5 expressive voices (eve, ara, rex, sal, leo) with 20+ supported languages. Supports inline speech tags for laughter, whispers, and pauses.

Strengths
  • Natural speech synthesis
Use cases
VoiceoversIVRAudiobooks