xAI: Grok Voice TTS 1.0
Grok Voice TTS 1.0 is a text to speech model from xAI released on Jul 31, 2026. It reads text and writes audio, with a 15K token context window.
- Modalities
- In / out price
- n/a
- Context
- 15K
- Max output
- 15K
- Released
- Jul 31, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
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Grok Voice STT 1.0
Transcription15K contextTurns speech into text.
by x-aiAug 4, 2026
- 500K context
Reads text, images and files. Tool calling, structured output, reasoning. Served by 24 providers.
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Grok Voice TTS 1.0 questions
What is the context window of Grok Voice TTS 1.0?
15,000 tokens of input, and it can write up to 15,000 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Is Grok Voice TTS 1.0 open source?
No. xAI serves it through an API only, so you cannot download the weights or host it yourself.
When was Grok Voice TTS 1.0 released?
Jul 31, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Grok Voice TTS 1.0?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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