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Grok Voice Think Fast 2.0

● live
xAI

Live — speech-to-speech; 82.9% on the Artificial Analysis index, up from 75.7%; grok-voice-latest repointed to it Aug 5; deprecated Oct 14, replaced by Grok Voice 3.0 (xAI release notes). On the board as live since 2026-07-29 — the watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.

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Timeline

2026-08-04
grok-voice-latest repoints to Think Fast 2.0 tomorrow — pin 1.0 before then, or your voice agent changes modelpost

If you call xAI's speech API through the alias grok-voice-latest, the model underneath it changes tomorrow. xAI's release notes state that on August 5, 2026, grok-voice-latest moves from grok-voice-think-fast-1.0 to grok-voice-think-fast-2.0.

2026-07-29
Grok Voice Think Fast 2.0 verified live — from the vendor's own announcement and catalog listingverified

The official word

We alert on verified API behavior, never on announcements alone — but when xAI speaks, it's here: x.ai/news ↗

Where to use Grok Voice Think Fast 2.0

1 provider lists Grok Voice Think Fast 2.0 in the models.dev catalog (as of 2026-11-01), under the model ids shown below.

Vercel AI Gatewayspacexai/grok-voice-think-fast-2.0

Listings cover the model family, so a provider may list a sibling tier under the same name. Check the id before you build on it.

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Grok Voice Think Fast 2.0: quick answers

Is Grok Voice Think Fast 2.0 out?

Yes. Grok Voice Think Fast 2.0 is live and has been since July 29, 2026.

When was Grok Voice Think Fast 2.0 released?

July 29, 2026.

Who makes Grok Voice Think Fast 2.0?

xAI. ArtificialWatch also tracks Grok Voice 3.0, Grok 4.7, Grok 4.6, Grok 4.5, Grok 4.20, Grok 4, Grok 4.4 and Grok 4.8 from xAI.

Where can I use Grok Voice Think Fast 2.0?

1 provider lists it in the models.dev catalog, including Vercel AI Gateway. The exact model ids each one lists are on this page.

More from xAI

Grok Voice 3.0live since 2026-10-14
Grok 4.7live since 2026-09-21
Grok 4.6live since 2026-08-12
Grok 4.5live since 2026-07-09
Grok 4.20live since 2026-03-10
Grok 4live
Grok 4.4watching
Grok 4.8watching

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