AI Reasoning · xAI
Grok Voice Think Fast 2
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★ Tier-1 Source
Today, they're announcing Grok Voice Think Fast 2.0, their next-generation voice model with improved intelligence, transcription accuracy, and conversational capabilities.
Key facts
- On August 5, 2026, grok-voice-latest will move from grok-voice-think-fast-1.0 to grok-voice-think-fast-2.0
- The gap between Grok Voice Think Fast 2.0 and dedicated speech-to-text models widens to ~10× in noisy settings
- To stay on Grok Voice Think Fast 1.0, pin grok-voice-think-fast-1.0 before then
- Grok Voice Think Fast 2.0 outperforms even dedicated, state of the art transcription models when it comes to accuracy
Summary
Grok Voice Think Fast 2.0 is their most intelligent voice model yet, building on its predecessor with meaningful gains in speech reasoning, conversational ability, and tool use reliability. Grok Voice Think Fast 2.0 outperforms even dedicated, state of the art transcription models when it comes to accuracy. The gap between Grok Voice Think Fast 2.0 and dedicated speech-to-text models widens to ~10× in noisy settings. Grok Voice Think Fast models have a unique characteristic: they reason through queries while speaking.