xAI: Grok Voice STT 1.0Work with me

xAI: Grok Voice STT 1.0

byxAI

Grok Voice STT 1.0 is a speech to text model from xAI released on Aug 4, 2026. It reads audio and writes text, with a 15K token context window.

Modalities
In / out price
n/a
Context
15K
Max output
15K
Released
Aug 4, 2026
Knowledge cutoff
n/a
  • Tool calling
  • Structured output
  • Reasoning
  • Prompt caching
  • Open weights
  • Free to use

More from xAI

  • Generates video from text, images and files. Served by 2 providers.

    by x-aiOct 1, 20262 providers

  • Index 46.5

    Reads text, images and files. Tool calling, structured output, reasoning. Served by 22 providers.

    by x-aiSep 16, 2026500K context$2/M input tokens$6/M output tokens22 providers

  • Reads text, images and files. Tool calling, structured output, reasoning. Served by 29 providers.

    by x-aiAug 10, 2026$2/M input tokens$6/M output tokens29 providers

  • Generates images from text and images. Served by 3 providers.

    by x-aiAug 7, 2026$0/M input tokens$0/M output tokens3 providers

  • Turns text into spoken audio.

    by x-aiJul 31, 2026

  • Reads text, images and files. Tool calling, structured output, reasoning. Served by 24 providers.

    by x-aiJul 7, 2026$2/M input tokens$6/M output tokens24 providers

All xAI models

Grok Voice STT 1.0 questions

What is the context window of Grok Voice STT 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 STT 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 STT 1.0 released?

Aug 4, 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 STT 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.

Book Meeting