Grok Voice Think Fast 1.0

Closed weights xAI April 2026

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
xAI
Organisation type
Industry
Country
United States of America
Published
23 April 2026

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Audio
Task
Speech-to-speech

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Training data
tokens

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Closed — provider access only
Model access
API access

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Record confidence
Likely

Sources

Where this record came from and when it was last checked.

Reference
Grok Voice Think Fast 1.0
Last updated
29 April 2026

What the numbers mean

Where it came from

Grok Voice Think Fast 1.0 was published by xAI, in United States of America, in April 2026. It comes out of industry.

It works in Audio, and is recorded as doing speech-to-speech.

Its weights were never published, so it can only be reached through its provider. No graphics card changes that.

Answers

Grok Voice Think Fast 1.0 — common questions

01

How many parameters does Grok Voice Think Fast 1.0 have?

No parameter count has been published for Grok Voice Think Fast 1.0, which is why no memory or speed figure appears on this page.

02

Who created Grok Voice Think Fast 1.0?

Grok Voice Think Fast 1.0 was published by xAI, based in United States of America, categorised as industry.

03

When was Grok Voice Think Fast 1.0 released?

Grok Voice Think Fast 1.0 was published in April 2026.

04

What is Grok Voice Think Fast 1.0 used for?

Grok Voice Think Fast 1.0 works in Audio, and is recorded as handling speech-to-speech. A model can carry several of each, so these are the areas it was built for rather than a limit on what it will attempt.

05

What GPU do I need to run Grok Voice Think Fast 1.0?

None. Grok Voice Think Fast 1.0 is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

06

Is Grok Voice Think Fast 1.0 open source?

No. Grok Voice Think Fast 1.0 has not had its weights published, so it exists only as a service controlled by its owner.

Source

Original publication

Record last updated 29 April 2026

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.