xAI Introduces Grok Voice 3.0 Speech-to-Speech Model for Voice Agents

xAI launched Grok Voice 3.0, a speech-to-speech model integrated into its Voice Agent API, offering sub-second latency and lower costs. Independent benchmarks rank it highest on the Speech-to-Speech Index, outperforming competitors like GPT-Live-1 and Gemini 3.8.