xAI · voice model

Grok Voice Transcribe 2.0

Grok Voice Transcribe 2.0 is a xAI voice model released Sep 17, 2026; xAI's newest voice model in our dataset is Grok Voice 3.0. Proprietary, API access only. xAI's speech-to-text model, available since Sep 17, 2026 and the default for the Speech to Text API. Verified against vendor sources on Oct 26, 2026.

Reported Last verified Oct 26, 2026 · All models · JSON · Markdown

ReleasedSep 17, 2026
LicenceProprietaryProprietary (API)

InAudioOutText

Key facts

Grok Voice Transcribe 2.0: key facts with sources
Fact	Value	Source
Vendor	xAI	n/a
Released	Sep 17, 2026	source
Status	generally available	n/a
API id	grok-voice-transcribe-2.0	source
Input	audio	source
Output	text	source
Licence	Proprietary (API)	source

Where Grok Voice Transcribe 2.0 sits in our data

Released Sep 17, 2026 (week 38 of 2026), in September 2026. Other models in our data released that month: GPT-6.1 Sol, Claude Sonnet 5.5, Claude Opus 5.5, Gemini 3.8 Flash TTS, Gemini 3.8 Flash-Lite TTS, GPT-6 Luna.
The previous xAI model we track is Grok 4.6 (Aug 12, 2026), 36 days earlier.
All releases by date: AI model releases by month · new AI models this week.

How Grok Voice Transcribe 2.0 differs from Grok Voice 3.0

Read from the recorded facts of the two models, not from a head-to-head test. We have not run either.

Grok Voice Transcribe 2.0 came out 27 days before Grok Voice 3.0.
Facts for the other model: Grok Voice 3.0.

What we tested

Nothing yet. We have not run Grok Voice Transcribe 2.0 ourselves, so every fact on this page is Reported from the sources below. When we do test it, the scope will be stated here and in our test logs. See methodology.

Not verified, left out

We could not confirm these on a vendor page, so we do not state them.

Pricing was not captured.