Google Launches Gemini 3.1 Flash TTS, Expanding Expressive AI Speech Across 70+ Languages Published: April 15, 2026 03:25 PM CDT (America/Chicago) Google has unveiled Gemini 3.1 Flash TTS, a new text-to-speech model designed to deliver more natural and controllable AI-generated voice outpu... AI Models Enterprise AI Gemini Google Text-to-Speech Apr 15, 2026