Grok Voice Think Fast 1.0

2026-04-23 · Publisher : xAI · Domain : Artificial Intelligence

xAI launches Grok Voice Think Fast 1.0, its flagship voice model for support and sales agents, able to reason in the background without added latency and ranked first on tau-voice Bench.

What changes

  • Full-duplex speech-to-speech model for complex multi-step flows.
  • Background reasoning with no additional latency.
  • More than 25 languages natively.
  • At Starlink: 70% of support requests resolved without a human and 20% sales conversion (vendor figures).

### Specifications - API identifier: grok-voice-think-fast-1.0. - Modalities: audio input and output, tool calls (28 tools handled at Starlink). - Availability: xAI API, console and playground. ### Pricing Pricing not disclosed in the post reviewed; third-party source: USD 0.05 per minute of audio. ### Benchmarks | Measure | Score | |---|---| | tau-voice Bench ranking | 1st (scores published by the vendor, value not detailed) | ### Key takeaways Targets contact centers; the price rises to USD 0.08/minute with version 2.0.

Links

Tags : Audio, xAI, Grok, Voix, Agents