AI Lab
Official xAI announcements — model releases, product launches and research, each one summarized with every source covering it, by AIBriefs. RSS
The speech-to-speech model achieved 82.9% on the Speech-to-Speech Quality Index and 56.5% on Tau Voice for agentic performance. It features a 0.70s time-to-first-audio and is now available on Agent Builder via the xAI Console.
21 new multilingual voices join the original five, available now in the Voice Agent API, Text to Speech API, and Voice Agent Builder. The original five voices also received quality upgrades for more natural pacing and emphasis.