Grok Voice TTS 1.0
by ZenMux · listed Jul 2026
Convert text into spoken audio with a single API call. The API supports a rich set of expressive voices, inline speech tags for fine-grained delivery control, and output formats from high-fidelity MP3 to telephony-optimized μ-law.
Current rates USD per 1M tokens
Input—
Output—
Cache read—
Cache write—
Against the market
On the record
- Model id
x-ai/grok-voice-tts-1.0- Context window
- 15K tokens
- Max output
- 15K tokens
- Input modalities
- text
- Output modalities
- audio
- Reasoning
- no
- Tool calls
- no
- Open weights
- no
- Knowledge cutoff
- —
- Released
- 2026-07-31
- Last updated
- 2026-07-31
- Provider docs
- docs.zenmux.ai