Google releases Gemini 3.1 Flash TTS with granular audio tags
google launched gemini 3.1 flash tts, a text-to-speech model offering granular control via audio tags. it supports 70+ languages, features native multi-speaker dialogue, and includes synthid watermarking for safety. the model achieved an elo score of 1,211 on the artificial analysis tts benchmark and is available in preview via gemini api, vertex ai, and google vids.
Google released Gemini 3.1 Flash TTS, a text-to-speech model emphasizing controllability and expressiveness. The model introduces 'audio tags,' natural language commands that allow developers to direct vocal style, pace, and delivery for single or multi-speaker dialogue. Available in preview on the Gemini API, Vertex AI, and Google Vids, the system supports over 70 languages and employs SynthID watermarking to detect AI-generated content. Benchmark tests by Artificial Analysis rank the model highly, with an Elo score of 1,211, placing it in the 'most attractive quadrant' for quality and cost.