Daily News · 1 min read

xAI AI Updates: April 25, 2026

xai grok voice-ai voice-agents api

1. xAI Launches Grok Voice Think Fast 1.0 for Full-Duplex Voice Agents

xAI. xAI introduced Grok Voice Think Fast 1.0, a real-time voice agent model exposed through the xAI API and aimed at customer support, sales, and enterprise workflows that need precise data capture and high-volume tool calling. The model ranks first on the τ-voice Bench leaderboard for full-duplex voice agents under realistic conditions — background noise, accents, interruptions, turn-taking — and supports 25+ languages with real-time reasoning. xAI cites real deployment on Starlink’s phone sales line (+1 888 GO STARLINK), claiming a 20% sales conversion rate and 70% autonomous resolution of customer support inquiries across 28+ tools. Source