x.ai grok Update Version grok-voice-think-fast-2.0
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Update Summary
Grok Voice Think Fast 2.0 adds improved speech reasoning, transcription accuracy, conversational quality, and tool-use reliability. On Aug 5, 2026, `grok-voice-latest` will switch to `grok-voice-think-fast-2.0`; pin `grok-voice-think-fast-1.0` to stay on the older model.
Update Details
New Features
- Next-generation speech-to-speech voice model with stronger intelligence and conversational capability.
- Improved transcription accuracy across 24 languages, including better performance in noisy and telephony-compressed audio.
- More efficient reasoning token usage, enabling faster tool calls during spoken interactions.
Hints
- No prompt changes are expected to be needed for existing integrations.
- To remain on Grok Voice Think Fast 1.0, pin
grok-voice-think-fast-1.0before Aug 5, 2026. - Pricing for Grok Voice Think Fast 2.0 is $0.08 per minute of audio.
Product Information
Vendor: x.ai
Product: grok
Product type: Other
Platform: Web
Version: grok-voice-think-fast-2.0
Vendor release date: Jul 29, 2026
Original release notes: View on vendor site
Published on updatealert.io: Jul 31, 2026
Description: AI assistant for conversation, analysis, and content generation.