Grok Voice 3.0 from SpaceXSI outscores OpenAI and Google on speech-to-speech index

SpaceXSI, formerly xAI, has released Grok Voice 3.0, a new speech-to-speech model for its Voice Agent API. Independent testing by Artificial Analysis ranks this model first, surpassing OpenAI and Google. SpaceXSI is targeting businesses utilizing voice agents for sales and customer support. On October 14, the grok-voice-latest alias was automatically updated to point to Grok Voice 3.0, meaning users of that alias were upgraded without requiring any manual configuration or deployment changes.