SpaceXAI has released Grok Voice 3.0, a speech-to-speech model designed to handle complete voice-agent conversations. It can listen, reason, call external tools, and produce spoken responses in one continuous pipeline.
According to MarkTechPost, the model now holds the top position on the Artificial Analysis Speech-to-Speech Index, scoring 86.9. That places it ahead of other comparable systems in a ranking that measures end-to-end speech capabilities.
For developers, SpaceXAI is offering an endpoint with event-based access. The listing includes a price of $0.08, though the source does not specify the exact billing unit. The release positions Grok Voice 3.0 as a commercial option for building voice applications.