xAI released Voice Agent Builder, a no-code tool to create AI call centers using over 80 voices or a real person's clone from a 2-minute recording. It integrates with Notion, Gmail, and Google Calendar to handle bookings, confirmations, and refunds via API.

The beta service charges 5 cents per minute and provides a phone number for each agent upon signup. xAI claims its Grok Voice Think Fast 1.0 model sounds more convincing than Google's Gemini 3.1 Flash Live and OpenAI's GPT Realtime 1.5.