Technical Trigger
The Gemini 3.1 Flash TTS update introduces audio tags, which allow developers to control vocal style, pace, and delivery by embedding natural language commands directly into the text input. This change is available via the Gemini API and Google AI Studio.
Developer / Implementation Hook
Developers can start experimenting with these audio tags in Google AI Studio, using configurable controls that place the developer in the “director’s chair”. This includes scene direction, speaker-level specificity, and seamless export of exact parameters as Gemini API code.
The Structural Shift
The introduction of audio tags represents a shift from basic text-to-speech generation to more expressive and controllable speech synthesis.
Early Warning — Act Before Mainstream
To take advantage of this update, developers can: * Start experimenting with audio tags in Google AI Studio * Use the Gemini API to export exact parameters for consistent voice control * Implement native multi-speaker dialogue and support for 70+ languages to create more immersive audio experiences