Subscribe

Grok Voice 3.0

SpaceXSI released Grok Voice 3.0, a speech-to-speech model that it says ranks first on the Artificial Analysis speech-to-speech index, responds in under a second and costs $0.08 per minute.

Grok Voice 3.0 succeeds Grok Voice 2.0 at the same $0.08 per minute price. SpaceXSI says it has 40% lower latency than GPT-Live-1 at a comparable τ-Voice score. Users on grok-voice-latest are upgraded automatically. SpaceXSI says it resolves about 70% of Starlink support calls without a human.

Date
Wednesday 14 October 2026
Lab
SpaceXSI
Kind
model
Access
closed API
Price
$0.08 per minute ($4.80/hour)

Figures

MeasureValueMeasured by
Speech-to-Speech Index score86.9
ranked #1
Artificial Analysis
Full Duplex Bench97%Artificial Analysis
Task success rate94.8%Artificial Analysis
τ-Voice71.6%
comparable with GPT-Live-1, at 40% lower latency
Artificial Analysis
EVA-Bench accuracy74%
enterprise scenarios, rated highest
ServiceNow
Starlink calls resolved without a humanabout 70%
of about 20,000 daily calls
company

Available through the Voice Agent API. The benchmark claims come from the company's announcement, apart from the Artificial Analysis ranking and the ServiceNow figure.

Sources

  1. x.ai/news/grok-voice-3
  2. techmeme.com/261014/p38#a261014p38
  3. x.ai/news/grok-voice-transcribe-2

This record was checked and corrected against its sources on 14 October 2026. How we check

Read the daily brief for 14 October 2026